The DSCC is promising a “sustained campaign” on the “Party of Trump” theme, starting with the web ad and a new website featuring a list of “ReTrumplicans,” and expanding to television, radio, and social media ads. The committee reported having $13.6 million in its coffers last month.

DSCC spokeswoman Lauren Passalacqua said in a statement that the candidates highlighted in the campaign “helped build the ‘Party of Trump’ by refusing to stand up to Donald Trump, and now these Senators and candidates are tied to the frontrunner’s toxic rhetoric and offensive comments.”

“Republicans know that Trump threatens their already fragile Senate majority, but they are unwilling and unable to do anything to stop the car from driving off the cliff with Trump at the wheel,” she said.