P. U. LBJ won because the electorate was not going to change horses again after the assassination of JFK and yes, I’m old enough to remember the election, too.
Obama is a Marxist, but our side has to put up a moderate to attract the middle? Sheesh.
It wasn’t simply that LBJ won, but Congress (both the Senate and the House) emerged from the 1964 election with 2/3 Democrat majorities, enough in the Senate at that time to override any Republican filibuster. I don’t think either party has had that large a majority since then.