Liberals and leftists have been dismissing inconvenient facts by attacking motives for generations. In the 1930s, '40s, and '50s, Soviet spies and abettors attacked the motives of their accusers because the fact of their guilt was undeniable. In the 1960s, over a thousand psychiatrists who'd never even met Barry Goldwater signed a petition saying the GOP candidate was too mentally unstable to be president.