Rubio and Ryan try to kill Romney's "47%" line

Marco Rubio and Paul Ryan gave speeches last night "delivering an implicit, but sharp, rebuke to Mitt Romney's '47 percent' line." I like this point:

“Every country has rich people, but only a few places have achieved a vibrant and stable middle class,” Rubio added, calling it a “fundamental promise of America” to have the opportunity to make it to the middle class.