But didn’t Eisenhower get a fair number of African-American votes in ‘52 and ‘56?
Less in 1952 than in 1956. And even in 1956, which due to special circumstances was easily the GOP's best presidential year among African Americans since the New Deal. the Democrats had a majority. To quote an old post of mine at
https://www.alternatehistory.com/fo...up-in-american-politics.454831/#post-17809925
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I have been doing some research lately on the 1952, 1956, and 1960 elections, focusing on the two nearly all-African American congressional districts that existed at that time: IL-01 (the heart of the "black belt" on Chicago's South Side) and NY-16 (Harlem, excluding East Harlem which was largely Puerto Rican--with some Italians remaining--and was in another district). IL-01 was listed as 91.7% Negro in the 1960 US Census, 91.0 in the 1960 one. NY-16 was listed as 86.8% Negro in 1950, 88.0% in 1960. Both districts were represented throughout the decade by African American Congressmen (William Dawson for IL-01, Adam Clayton Powell, Jr. for NY-16). Here are maps of the districts:
Here are the figures for how these districts voted in the presidential elections of 1952, 1956, and 1960. (I am omitting minor party candidates, who got very few votes in these districts.)
IL-01
1952
D (Stevenson) 99,224 74.6%
R (Eisenhower) 33,805 25.4%
1956
D (Stevenson) 68,266 63.7%
R (Eisenhower) 38,827 36.3%
1960
D (Kennedy) 81,399 77.4
R (Nixon) 23,109 22.0
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NY-16
1952
D (Stevenson) 82,882 81.2%
R (Eisenhower) 17,497 17.0%
1956
D (Stevenson) 62,004 66.4%
R (Eisenhower) 31,325 33.6%
1960
D (Kennedy) 58,192 64.9
Liberal (Kennedy) 11,364 12.1 JFK total: 77.1
R (Nixon) 19,902 22.2
Now it is possible that the vote from big northern African American communities like those of Chicago and New York understate the Republican vote among African Americans in the nation as a whole--for example, the relatively few African Americans who voted in the South seem to have retained their Republican loyalty longer than those in the North. Nevertheless, even looking at the northern big city African American vote, one can say that it was not quite a bloc in the sense of the 90% plus percentages for Democratic presidential candidates we are used to since 1964--or the Republican percentages before the New Deal. Except for Eisenhower in 1952 in NY-16, the Republican presidential presidential candidate in these years always got at least 22 percent of the vote. 1956 was easily the GOP's best year among African American voters. Stevenson took a "moderate" stand on civil rights to get southern white votes; Adam Clayton Powell, Jr. openly endorsed Eisenhower, supposedly on civil rights (cynics suggested it might also have something to do with the administration dropping an income tax charge against Powell). Anyway, Ike got 33.6% of the vote in the Harlem district and 36.3% in the Chicago South Side one.