Romney launched a new ad Friday.
WASHINGTON (CNN) - Former Massachusetts Gov. Mitt Romney is the latest presidential candidate to criticize New York Sen. Hillary Clinton, releasing a new ad Friday going after the Democratic frontrunner.
"Hillary Clinton wants to run the largest enterprise in the world," Romney says in the ad. "She hasn't run a corner store. She hasn't run a state. She hasn't run a city. She has never run anything. And the idea that she could learn to be president as an internship just doesn't make any sense."
Responding to the ad, Clinton spokesman Isaac Baker said, "Gov. Romney is a very experienced flip-flopper who has taken different positions on nearly every important issue facing the nation."
"Hillary Clinton is a two-term senator who has represented the United States in 82 countries around the world, and has been one of the nation’s leading advocates for children and families for 35 years," Baker added. "Trying to diminish her service isn’t going to help Mr. Romney’s weak and rudderless campaign."
Romney's ad starts airing in New Hampshire Friday.
–CNN Associate Producer Lauren Kornreich