Despite the political tradition of his family, Konstantinos Mitsotakis did not intend to meddle in politics after liberation. His intention was to play an important role in socio-political affairs of Chania, mainly through the local newspaper "HERALD" which he reissue, during those times, after the interruption of its circulation during the German occupation.
The local Chania newspaper "HERALD", was one of the historical Chania documents, as was first published on 07/12/1901 by Eleftherios Venizelos and was the continuation of the newspaper "WHITE MOUNTAINS", which was issued in 1881 by Konstantinos Mitsotakis's grandfather, old-Costis Mitsotakis.
Konstantinos Mitsotakis's involvement became partly inevitable, because both his father and uncle had died and there was no one to represent the family, politically, and because of the prestige and recognition he had earned during the resistance.
He was first elected as Chania parliament member, during the elections of March 31, 1946, with the National Political Union of Sophocles Venizelos. At the age of 28, he was the youngest member of the first post-war Parliament, where his first parliamentary speech, took a position in favor of a king free republic, during a debate on a draft resolution with subject "On referendum invitation for the return of His Majesty King George II". This position was supported in the first referendum of 01/09/1946 and maintained throughout his political career.
Since then, he is regularly elected MP (Parliament Member) with the Liberal Party or the parties of the Centre, until the April 21, 1967 coup. Specifically, during 1950 and 1951 he was elected with the Liberal Party, in 1952 with the combination of the National Progressive Center Union Party/Liberals, in 1956 with the Democratic Union, in 1958 with the Liberal Party and in 1961, 1963, 1964 with the Union Centre.
He resumed government responsibility, for the first time, as deputy finance minister at the age of 32 between February 1951 - November 1951. During that time, and for some period, he simultaneously resumed the Communications and Public Works Ministries.
During the 1952-1956 period, Konstantinos Mitsotakis is established as a distinguished parliamentarian man.
During the Parliament House meeting of June 8th, 1953, on the occasion of a bill concerning the retirement of senior officers and restoration of others with disciplinary offenses, Konstantinos Mitsotakis will bring to the fore the great problem of IDEA (Sacred Bond of Greek Officers) in the army, and at the same time accurately determine the position of his party, and his personal position and attitude in relation to this problem.
In particular, at that meeting (of June 8th, 1953) Konstantinos Mitsotakis started his speech by stressing:
"... For those of us that have the honor to belong to the Liberal Party, which, with the help of the national Greek army, broadened the borders of Greece, the Greek army is the jewel of the Nation ...".
Then, he emphasized that discussions on military issues should be made with caution and:
"... never to be exhausted by the intention of defamation or reduction of the assessment, which the Greek public opinion must nourish towards the national army...".
He is bound, as he stated, to move forward with the question because he believes that the government is following a path that is far from useful to the army, and stressed his disagreement with the National Defence Minister, who considered his questioning specific and detailed:
"...Our question was raised on the basis of the policy which the government of the Greek Rally followed against the army problem, raised at the base of this policy and specifically relies in two sections, which concern two particular government policy events. One relates to the reintroduction of demobilized officers, following the May 30-31st, 1951 movement, and the second the wide retirement of perfectly capable officers, both of which rise to the impression that after many years, politics is entering the army, and that the Government is attempting in such a way to create an army in favor of her ... ".
Konstantinos Mitsotakis continued retrospect the events of May 31st, 1951, the efforts made by the political leadership of the country to persuade Papagos than to resign, the movement that occurred immediately after the resignation of Papagos while blaming Papagos because during his resignation, he didn't handed over Management to his rightful replacements, thus creating a leadership vacuum in the army. The above remark provoked the reaction of the attending the House Prime Minister Papagos, who accused Mitsotakis to inaccurate presentation of the facts. Konstantinos Mitsotakis, in turn, asked Papagos not interrupt him and let him develop his questioning, as he understands it. These words created agitation in the Parliament and forced its president to intervene. Mitsotakis, prior to the development of his query, stated:
"...I will not give acidity in the development of my query. But I am not willing not to say what I have to say ...".
Then the issue raised was the view of the opposition that there was indeed movement and the will of the party in power to minimize the importance of the then event. Konstantinos Mitsotakis, continuing, said the then government demobilization, after due process, of the instigators of the movement. And then, the Alarm government came which:
"...found these officers, not only burdened, but guilty of grave anti disciplinary offense ...".
In the same context, Konstantinos Mitsotakis recalled Papagos's statements, dated March 17th, 1952, who, referring to the issue of IDEA and the movement of May 30th, 1951, assessed the movement as anti disciplined and that the officers should be strictly punished:
"...Mr. Papagos himself, who was declaring, at the time, that strict penalties should be imposed, as president of the Government restored them. He restored the people who rebeled against ... ".
At this point, Konstantinos Mitsotakis's speech was covered by voices and noise from the seats of the party in power that forced him to interrupt. Returning back to his speech, he continued by saying that Papagos:
"... brought those officers, back to the army, and today these officers ... serve in the army ...".
Later in the speech, Konstantinos Mitsotakis referred to the illegal organization IDEA, read texts related to the scope of the organization to conclude:
"...You see this text, which is α provocative sample of these people intentions, to what people is delivered today, at least in part, our national army. You see of what intentions these people were, how unscrupulous in their means, and which were their stated pursuits. Because it is no longer an organization... ".
At this point, he was suspended by vice president P. Kanellopoulos, saying about the "IDEA" officers that: "... were resisting against the enemies of the fatherland."
This caused the applause of the majority and the disapproval of Konstantinos Mitsotakis:
"...I most sincerely regret for the addition, you made this moment, because you appear so as if you take under your protecting this shameful document. It is not permitted to any delegate, in particular to active officers ... to talk about creating a government and about celebrity murders, that they would consider an obstacle in whatever their purposes ... ".
Finally, Konstantinos Mitsotakis developed the second part of his question, about officers' retirement:
"... based on major generals judgment, massive sequential retirement..., 14 major generals which are all elite members of our national army. Dear colleagues, it is not in my habit nor to praise persons, nor to lash out against others. That however, which I want to say is that as a common confession those people whom as a group, within 6 months, performing frightening and unprecedented proscriptions, the Government retired, were and are jewels of the Greek army being officers who were distinguished for their ethics and professional education, were proven fighters on battlefields and commanders of large units ... "
…and continued accusing the government because, firstly they brought back in the army insurgents and, secondly demobilized perfectly capable officers simply because:
"... Sympathizers towards this situation were not found, situation that exists today in the army ..."
…and pointed out that this fact:
"... certainly creates a privilege and apprehension that intervention in the army is attempted, for the purpose of influencing our national army so that it becomes an instrument for party pursuits ... Still, dear colleagues, I wish to mention something that is widely discussed between people. The very existence of cliques within the army creates, as a fatal consequence, the premature trend for climbs to the highest ranks and creates the need to maintain an army composition, which we probably wouldn't need ... ".
…and he finished his speech by directly accusing the government for reinstating army leaders of IDEA to leading positions, causing, in addition to other, division risk in the armed forces. And reminded how expensive this division was for the country, stressing the need for a change of government policy, because its obsession with this policy will result in:
"... to divide and deminish the fighting force of the national army ...".
In March 1955 also, a debate in Parliament on the occasion of the decision of the Holy Synod of the Church of Greece calling for the prohibition of the circulation of the works of Nikos Kazantzakis, Konstantinos Mitsotakis defended the literary work of the great Greek author. Specifically, in this debate he stressed: "everywhere in Europe and elsewhere on earth, I can say, from Greece to the Nordic countries and America, and to France and England. Nikos Kazantzakis however, is not only a great writer, while simultaneously a true patriot also ... Additionally, dear colleagues to my perception, Nikos Kazantzakis is a true Christian. He has a deep and spontaneous religious feeling, "as evidenced by his latest book "Christ re-crucified" circulated in Greece. I want to believe that the Greek Government, which is a Government of a free democratic country, which always stood up for the freedom of speech and thought, would not astray in slip to proceed to ban their circulation .... "
From that time also it already begun to emerge, his leadership qualities. During the great leadership crisis of the Liberal Party in 1958, at age 40, he raised candidacy for the leadership of the faction and was approved by the 1/3 (95 votes received) of party deputies. Then, in 1960, he starred in the "Group of 10" (K. Mitsotakis, G., Mavros, C. Novas, St. Allamanis, I. Toumbas, Ph. Zaimis, P. Papaligouras, I. Zigdis, C. Bakatselos and G. Rallis) and participated in the new centrist political formation called "Democratic Centre - Rural Liberal Union".
His aim was always the unity of the Centre. So, important was his contribution to the effort combining the centrist forces and the creation of the Centre Union in 1961, when after the death of G. Kartalis and in cooperation with other young politicians of the party, George Papandreou was promoted to party leadership.
He was a key member of the Center Union and star of the "Uncompromising Struggle". He was finance minister in the governments of George Papandreou, in 1963 and 1964. After July 15th, 1965 he was appointed Coordination Minister.
Konstantinos Mitsotakis played an important role in the July 1965 crisis, an event which marked his further course. Having made every effort to avoid the crisis, he participated in the government formed by the executives of the Centre Union, who disagreed with the "rupture with the King" policy. Revealing, during the crisis period, is his speech to the Parliament, on August 3rd, 1965. After two failed attempts (Georgios Athanasiadis-Novas and Elias Tsirimokos's governments) the Stephanos Stephanopoulos government was formed, by receiving a confidence vote in September 1966. Konstantinos Mitsotakis was Coordination Minister during the Nova and Stefanopoulos governments. Economic indicators, for the years 1965-1966, were of the most satisfactory until then despite politically motivated strikes. Meanwhile, at the end of 1965, fundamental monetary measures were taken that resulted in the displacement of the golden pound, from the Greek economy, with ulterior results of the influx of large amounts of gold pounds to the Bank of Greece, the significant increase in private deposits, the halting of exchange leakage, and in general, the consolidation of monetary stability. The Stefanopoulos government however, was overthrown, in December 1966, following a secret agreement of the then King Constantine with George Papandreou and Panagiotis Kanellopoulos. That deal, revealed and denounced by the "Freedom" newspaper, on January 1st, 1967, entitled "Conspiracy Memorandum", is now historically proven and confessed by its own protagonists, led to the formation of the Paraskevopoulos government by extra-parliamentary personalities. Mitsotakis, as representative of the party "Liberal Democrats Center" (L.D.C.) asked, from the floor of the House, the formation of a government with participation of the two major parties, noting since then, the danger of dictatorship. The unjustified Paraskevopoulos government over through, by Panagiotis Kanellopoulos, paved the way for constitutional aberration.