Sweaty. Lightweight. A no-show worker. Disloyal. A kid. A borrower “with no money, zero.”

Donald Trump has spent the past two days bashing Marco Rubio with these insults as a way to send a message: Criticize the big dog and get bitten.

On Thursday, Rubio barked back at Trump, calling him “a very touchy and insecure guy.” Rubio also attacked Trump at his points of pride: his stage presence and his poll numbers.

“He had a really bad debate performance last week,” Rubio told Kentucky Sports Radio. “He takes shots at everybody that gets anywhere close to him, in terms of a poll, or anytime he hits a rough spot that’s what he does.”