Sen. Ted Cruz (R-Texas) said Thursday that traveling to Cancun, Mexico, was “obviously a mistake” as millions of Texans lost power for days after a deadly winter blast overwhelmed the electric grid. The Republican lawmaker made the remarks to reporters outside his home as a group of protesters called for his resignation, chanting, “Ted Cruz has got to go!” “In hindsight, I wouldn’t have done it,” Cruz said, Fox News reports. “I was trying to be a dad and all of us have made decisions, when you have two girls who have been cold for two days and haven’t had heat or power and they’re saying, ‘Hey look, we don’t have school, let’s get out of here.’ Cruz said in a statement on Thursday that, “with school canceled for the week, our girls asked to take a trip with friends. Wanting to be a good dad, I flew down with them last …