Beto O'Rourke gets tough in Texas U.S. Senate battle. Is it too late?

Falling behind in the polls and running out of time, Democratic contender for the U.S. Senate Beto O'Rourke went on the attack against GOP incumbent Ted Cruz in a raucous debate in San Antonio, Texas, on Tuesday night, calling him dishonest and resurrecting President Trump's campaign nickname "Lyin' Ted."