PRESIDENTS WHO GOT LARGE MAJORITY BLACK SUPPORT IN US HISTORY:
Abraham Lincoln (R) Lincoln is credited with ending slavery - black support
Warren Harding (R) Harding is credited with signing anti lynching laws - black support
Franklin Roosevelt (D) FDR is credited with opening up aid and jobs during the depression - black support
***Harry Truman (D) Truman ended segregation in military and ended bias in federal jobs - black support
John F. Kennedy (D) JFK gave the IMPRESSION he supported the Civil Rights Movements - black support
Lyndon B. Johnson (D) LBJ - signed Civil Rights Legislation - black support
*** Truman had issued an order desegregating the armed services and setting up regulations against racial bias in federal employment. its the reason why the black middle class was built on state and federal govt jobs thru out the 40s, 50s and 60s. It wasn't until Harry Truman garnered 77 percent of the black vote in 1948 that a majority of blacks reported that they thought of themselves as Democrats.
Civil Rights legilation is what changed the trend. The sad part is that like the Compromise of 1877...the GOP let the black vote go.