The incredible cowardice of the 1 percent: Why wealthy GOP donors are so afraid of Donald Trump
"Many leading Republican officials, strategists and donors now say they fear that Mr. Trump’s nomination would lead to an electoral wipeout, a sweeping defeat that could undo some of the gains Republicans have made in recent congressional, state and local elections … Some of the highest-ranking Republicans in Congress and some of the party’s wealthiest and most generous donors have balked at trying to take down Mr. Trump because they fear a public feud with the insult-spewing media figure."
