Montana Gov. Steve Bullock on Monday dropped out of the Democratic presidential race and his campaign said he won’t run for the state’s Senate seat next year.

Bullock failed to convince Democratic voters that he could beat President Donald Trump in red states. He polled at 0 percent in both CNN and Quinnipiac polls released last week.

In a statement released early Monday, Bullock said that “it has become clear that in this moment, I won’t be able to break through to the top tier of this still-crowded field of candidates.”

Bullock’s exit leaves 16 candidates in the Democratic race. Former Pennsylvania Rep. Joe Sestak ended his campaign on Sunday.

Bullock’s campaign said in a statement that he won’t enter the state’s Senate race against incumbent Republican Steve Daines.