What he said via TMZ
10:21 AM PT -- Sen. Cruz just issued a statement about his Cancun trip, and says ... "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 night and am flying back this afternoon."
If Cruz is saying he went down to chaperone his kids for the flight, he didn't mention his wife was with them, and she could have done it. BTW, he was carrying a suitcase.