That’s queer. He’s wearing the jacket of someone much larger. Look at the baggy shoulder and upper arm areas and especially the sleeve length.
Maybe DT loaned him a jacket for the shot. Felt sorry for him.
Maybe he thinks he is leaving the impression that he has bigger shoulders than he does. Weird.
I read somewhere that Trump lent him a jacket for that photo because he didn’t have one that day.
Trump is a much bigger man, and that’s why Cruz looks so odd in the pic.