Republican Sen. Dean Heller is narrowly leading Democratic challenger Rep. Jacky Rosen in the Nevada Senate race.

A new NBC News/Marist College poll shows that Heller is ahead of Rosen by 2 percentage points, and has 46 percent of support from likely Nevada voters.

The Senate race in Nevada is one that could determine if Republicans will keep their Senate majority, which they hold by only two seats currently.

The poll was taken between Sept. 30 and Oct. 3, right in the middle of the controversial Supreme Court confirmation process of now-Justice Brett Kavanaugh.

Heller voted to confirm Kavanaugh, gaining national attention after the first accuser, Christine Blasey Ford, emerged, claiming it would only be a “hiccup” in Kavanaugh’s confirmation.

Rosen, who holds 44 percent of Nevada voter support, denounced the confirmation and ran digital advertisements attacking Heller for supporting Kavanaugh.

The poll has a 5.5 percent margin of error.

Nevada voted for Hillary Clinton in the 2016 presidential race by more than two percentage points, but has not had a Democratic governor since 1999.

Adam Laxalt, the Republican gubernatorial candidate, has 46 percent of likely voters’ support, and his Democratic counterpart has 45 percent, according to the poll.