Ted Cruz of Texas is headed back to Washington after he turned back a challenge from Democratic Rep. Colin Allred, NBC News projects ... senator in such a red state was a long shot. And Cruz's party affiliation was perhaps his most valuable asset.

FORT WORTH, Texas (AP) — Republican Sen. Ted Cruz, of Texas, sought to fend off an underdog challenge Tuesday from Democratic Rep. Colin Allred in one of the year's most expensive races, which is testing shifts in America's biggest red state and could factor into the fight for U.S. Senate control.

Ted Cruz (R-TX) won reelection to his Texas Senate seat in a closely watched race against Rep. Colin Allred (D-TX), a boost for Republicans' quest for control of the upper chamber.  Multiple outlets called the race for Cruz within a couple hours of polls closing in Texas.