In a two-hour raucous town hall meeting, Nevada Sen. Dean Heller affirmed he is “not a climate denier” amid concerns expressed by attendees over his vote to confirm EPA administrator Scott Pruitt.

“There is no Republican in DC who has done more for clean energy than me,” Heller said. In both the House and the Senate, he has supported clean energy policies. He also assured the crowd, “When Scott Pruitt is right, I’ll support him. When he isn’t right, I’ll change his mind.”

The meeting was co-hosted by Rep. Mark Amodei, a member of the House Climate Solutions Caucus.