Sen. Jon Tester (D-MT) faced off against GOP challenger Tim Sheehy on Monday night in what could be the final debate this cycle in the Montana Senate race.

The debate, at times tense, comes as Tester is the last remaining Democrat to hold high office in Montana. The Senate race is likely to determine the balance of power in the upper chamber as Republicans only need to pick up two seats to take the Senate majority.

An average of polls shows Sheehy has a 7-point lead over Tester in a state where Trump won by 17 percentage points.

Here are the takeaways from the latest debate between the two candidates ahead of Election Day.