Pro-Trump PAC plans to launch ad campaign against Heller

"America First Policies," a pro-Trump PAC, is planning to spend seven figures on advertisements to oust Nevada Sen. Dean Heller, according to New York Times reporter Maggie Haberman. Just hours ago, Heller announced that he will not support the Senate health care bill in its current form. He is up for re-election next year.

Why it matters: Heller is the fifth Republican senator to oppose the bill, and others may join him. But the pro-Trump organization's willingness to pour resources into midterm elections may change minds.