This says a lot. The New York Times, The Washington Post, and USA Today today all published their own list of Republicans who have publicly denounced Trump. The New York Times' page is probably the best one to check out though as it not only is a list but also a timeline of Trump's statements next to the names and faces of the Republican leaders who found those statements horrifying enough to vote against their own party. The New York Times list goes one step further even in coloring the names of the Republicans blue in the rare cases where the leader not only denounces Trump but also pledges to vote for Clinton.
What a wild ride, huh?