Less than 12 hours after he was booed for not endorsing GOP nominee Donald Trump during his late-night speech before the Republican National Convention, Texas Sen. Ted Cruz isn't backing down. Indiana Gov. Mike Pence, the Republican vice presidential nominee, headlined Wednesday's event. But all eyes were on Ted Cruz earlier in the evening for his refusal to endorse Donald Trump. POLITICS Pence Makes The Case For Trump After Cruz Is Booed At an emotional event with the Texas RNC delegation Thursday morning, Cruz defended his decision to withhold his endorsement at a time when Republicans are trying to rally...