President-elect Donald Trump is weeks away from taking the oath of office, but for two Colorado presidential electors, the 2016 contest remains contested. The electors, who are Democrats vehemently opposed to Mr. Trump in the White House, have filed a lawsuit challenging the winner-takes-all system for casting electoral votes.

Reports the Denver Post: Two Democratic electors who pledged to support Democrat Hillary Clinton — the winner of the state’s nine Electoral College votes — now want to “vote their conscience and do their constitutional duty as intended by the framers,” said Jason Wesoky, the attorney who filed the suit. Polly Baca, a former state lawmaker, and Robert Nemanich are among the “Moral Electors” hoping to persuade Republican electors in other states to vote for a third-party candidate to keep Trump from receiving 270 electoral votes — and offering to shift their Democratic votes to a consensus pick.