Some Democrats are promising to push for more clean energy to help tackle rising energy costs when they take control of Congress in January, though Donald Trump says he will use his veto power aggressively.

With new majorities in the House and Senate after last week’s midterms, Democrats can set an agenda boosting clean energy and addressing climate change. While those are traditionally core priorities of the party, climate was not a central topic in this election cycle.

Democrats can begin investigations and hold hearings into climate policy rollbacks and elimination of green energy grants by the Republican administration, potentially trying to undo some changes and restore renewable energy incentives.