"It's fun to watch him blow up"

“From time to time we’ll respond, because it’s fun to watch him blow up even more,” Rubio said on Thursday of Trump’s barbs, according to NBC Boston.

“He’s a guy that’s sensitive to criticism,” he added. “So he reacts these ways, and it is what it is. This is how he gets attention.”
Rubio’s remarks are the latest in a war of words with Trump that started earlier this summer.

Trump has repeatedly criticized Rubio’s Senate voting attendance as a sign he’s an immature “kid.” Rubio has countered that the outspoken billionaire is “touchy and insecure.”