When you go personal you run the risk of burning your bridges.
Nope. Opposition to Trump is policy based. Trade and immigration. Billions are at stake with TPP and amnesty. Fabulous fortunes will be made if Trump is kept out of the White House. So naturally they fight Trump like they never fought Obama.
OTOH, The Dems “went personal” on Romney. Accused him of causing cancer, IIRC. Now he happily plays for Team Hillary Rotten Criminal. Rubio & Cruz duked it out. Now they are besties because their big donors want the same thing.
yes, these weasels who never fought Obama are now working to keep Trump out of the White House. They would rather help to elect Hillary.