A new ad for Mitt Romney features Sen. Marco Rubio explaining why it is important to support Medicare reform.

“Mitt Romney and Paul Ryan get it. Medicare is going broke,” Rubio explains. “That’s not politics. It’s math. Anyone who wants to leave Medicare like it is, is for letting it go bankrupt. My mother’s eighty-one and depends on Medicare.”

Rubio promises that its possible to save Medicare without changing benefits for current seniors, but only if future retirees accept a different model.

“We can save Medicare without changing hers, but only if younger Americans accept that our Medicare will be different than our parents’, when we retire in thirty years,” he explains. “But after all they did for us, isn’t that the least we can do?”