Martin Luther King, Jr. was not very Republican

In response to this.

“The Republican Party geared its appeal and program to racism, reaction, and extremism. All people of good will viewed with alarm and concern the frenzied wedding at the Cow Palace of the KKK with the radical right. The “best man” at this ceremony was a senator whose voting record, philosophy, and program were anathema to all the hard-won achievments of the past decade.

It was both unfortunate and disastrous that the Republican Party nominated Barry Goldwater as its candidate for President of the United States. In foreign policy Mr. Goldwater advocated a narrow nationalism, a crippling isolationism, and a trigger-happy attitude that could plunge the whole world into the dark abyss of annihilation. On social and economic issues, Mr. Goldwater represented an unrealistic conservatism that was totally out of touch with the reality of the twentieth century. The issue of poverty compelled the attention of all citizens of our country. Senator Goldwater represented a philosophy that was morally indefensible and socially suicidal. While not himself a racist, Mr. Goldwater articulated a philosophy which gave aid and comfort to the racist. His candidacy and philosophy would serve as an umbrella under which extremists of all stripes would stand. In the light of these facts and because of my love for America, I had no alternative but to urge every Negro and white person of goodwill to vote against Mr. Goldwater and to withdraw support from any Republican candidate that did not publicly disassociate from Senator Goldwater and his philosophy.”

-Martin Luther King Jr., from this book.