http://www.nbcnews.com/politics/2016...-trump-n433121

Rubio Slaps Back at 'Touchy' Trump

by Doug Adams
Sep 24 2015, 7:44 pm ET

Presidential candidate Marco Rubio is hitting back at Donald Trump, calling him a "touchy and insecure guy" who is not well informed on issues.

"First of all, 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," he said during an interview on Kentucky Sports Radio Thursday morning.

"He had a really bad debate performance last week," continued Rubio. "He's not well informed on the issues. He really never talks about issues and can't have more than a 10-second soundbite on any key issue. And I think he's kind of been exposed a little bit over the last seven days, and he's a very touchy and insecure guy and so that's how he reacts, and people can see through it."

Trump slammed Rubio on Wednesday during an appearance in South Carolina, calling him a "lightweight" and poking fun at the Florida senator's perspiration during the second GOP debate last week.

Trump leads a new Quinnipiac poll of the Republican field released Thursday morning, coming in with 25 percent support. Rubio stood in fifth place, with the backing of nine percent of GOP voters.