Vice President Mike Pence will star in attack ads targeting Sens. Joe Donnelly (D-IN), Heidi Heitkamp (D-ND) and Jon Tester (D-MT) on issues like immigration and Obamacare repeal, according to a Friday Politico report.

The commercials, funded by the National Republican Senatorial Committee, are slated to air by the end of next week.

Ironically, per Politico, Pence wrote an essay years ago in which he vowed to give up negative campaigning after a dismally failed House bid in 1990 that earned him many rebukes for his nasty and offensive tactics. However, since joining team Trump, his qualms about getting his hands dirty seem to have faded.

Donnelly, Heitkamp and Tester all represent states that Trump won by double digits in 2016, so Republicans see those states as opportunities to flip valuable Senate seats.