I can remember elections back to 1960, and while the candidates may have been civil, their supporters certainly weren’t always.
In 1960 the fear was that Kennedy, a Catholic, would take his orders from the Pope.
In 1964, getting us into nuclear war was only one of the fears about Barry Goldwater. He was also accused of wanting to end Social Security and wanting to cut the east coast off the rest of the U.S.
In 1968, people thought Humphrey was a stooge of Lyndon Johnson, and Nixon was “Tricky Dick.” George Wallace basically ran a camapign of being angry about everyone.
In 1972, George McGovern was a Commie for opposing the Vietnam War. Nixon was a crook.
In 1976, Ford was a Watergate stooge and Carter was an ignorant hillbilly.
In 1980, Carter was an incompetent hillbilly and Regan was an incompetent old man.
In 1984, Reagan wasn’t incompetent, he was dangerous; while Mondale was a tax-happy liberal.
In 1988, Dukakis was soft on crime and incompetent, while Bush Sr. was a stooge of Reagan.
In 1992, Clinton was a lightweight, Bush was clueless and Perot was just crazy.
In 1996, Clinton was corrupt and Dole was nasty. Perot was still plain crazy.
In 2000, Bush Jr. was a stooge and Gore was all of Clinton’s liberal weaknesses with none of his political skills.
And don’t forget, people DESPISED Franklin Roosevelt.
Now, thanks to the Internet and cable, everybody who hates everybody has a much bigger platform from which to spew.