It's a split decision.

Democrats will win control of the House in Tuesday's critical midterm elections, and Republicans will hold the Senate after Sen. Ted Cruz, R-Texas, defeated Democratic challenger Beto O'Rouke, NBC News projects.

Tune into NBC News’ coverage of the midterm elections – "The Vote: America's Future" – anchored by Lester Holt and Savannah Guthrie, and joined by Chuck Todd.