(Dawn Megli/Neon Tommy)

King, who will take over for retiring Republican Sen. Olympia Snow, will likely caucus with the Democrats, as he is a socially liberal legislator who supports the Affordable Care Act. King is the second Independent to win a seat in the U.S. Senate tonight with Vermont's re-election of Sen. Bernie Sanders.

Neon Tommy projected King to win this race.

Read more of Neon Tommy's coverage of the Senate races here.

Reach Editor-at-Large Matt Pressberg here.