The Democratic National Committee has released a new ad attacking former Massachusetts Governor Mitt Romney. The ad takes on Romney’s repeated claims that he is not a career politician by pointing out that Romney has actually been running for office for the better part of two decades.

Video of the ad is below:

This is the second time in the past two weeks that the DNC has gone after Romney, suggesting that — although Newt Gingrich is now polling in the lead for the Republican presidential nomination — the DNC still views Romney as the primary threat to President Obama’s re-election.