On a chilly January morning in 1978, Jesse Jackson delivered a rousing keynote address to a large group of political leaders. Energized from a recent meeting with President Jimmy Carter at the White House, the civil rights activist dazzled his audience with nearly an hour of political "gospel rock." At the end of Jackson’s fiery speech, his audience launched a five-minute standing ovation. Oddly, his audience was a group of white Republicans. Why would a liberal civil rights activist – with ties to the Democratic Party – engage a political party that had a reputation for turning its back on…