WASHINGTON -- Facing an increasingly narrow path to the nomination and failing to thwart Donald Trump's dominance, Sen. Ted Cruz (R-Texas) withdrew from the 2016 presidential race on Tuesday.

"Tonight, I'm sorry to say that path has been foreclosed," Cruz said in a speech Tuesday night in Indianapolis, "but the voters chose another path."

"We are suspending our campaign," he added.

As Trump barreled toward the 1,237 delegates required to win, Cruz's campaign in recent weeks resorted to increasingly desperate measures, mounting a last-ditch effort to win the Indiana primary, one of the only remaining primary states that gave Cruz a chance of winning. But Indiana turned out to be the final nail in the coffin -- Trump won handily in the Hoosier State, including among social conservatives, a demographic that in theory favored Cruz.

To reinvigorate his campaign, Cruz last week named former presidential candidate and Hewlett-Packard CEO Carly Fiorina as his running mate , even though candidates typically do not name their running mate until they have amassed enough delegates for the nomination.