With control of the U.S. House of Representatives still in question, Maine Democratic Rep. Jared Golden, a moderate known for defying his party, led by a thin margin over Republican Austin Theriault on Thursday in a race that was still too early to call two days after voting ended.

Although U.S. Rep. Jared Golden already gave his victory speech, the race for Maine’s 2nd Congressional District is not final. Because there was an unofficial write-in candidate, in addition to Golden and Republican state Rep.

The race to represent Maine’s Second Congressional District, one of the most closely-watched in the nation that could help determine control of the US House of Representatives, is headed for a runoff, despite the objection of the incumbent, officials said.