In his campaign announcement, Romanoff set early themes, including supporting Medicare for all, the so-called “Green New Deal” to move toward renewable energy and an immigration reform plan that includes a pathway to citizenship. Also, he has vowed not to take contributions from special-interest groups.

“We’ve seen our planet plundered by an industry that puts its profits ahead of our survival,” Romanoff’s statement said. “And just as troubling, we’ve seen politicians do the bidding of billionaires, catering to their corporate benefactors while sticking the rest of us with the bill. I’m running to change that.”