Weren't many of current Republicans in Congress a Democrat at one point?
"Weren't many of current Republicans in Congress a Democrat at one point?"
Indeed!
Ronald Reagan himself was a staunch FDR Democrat and a union leader. And truth is, his Presidency was similar to FDR's. But the Democrats had moved so far to the Left by that point that an old FDR Democrat looked like an antediluvian conservative. Go figure.