Joni Ernst, the Republican Senate candidate from Iowa, is getting a boost from GOP super PAC American Crossroads. A new TV ad from the group contrasts Ernst’s background as “a mother and a soldier” with that of her opponent, Democratic congressman Bruce Braley.

“Bruce Braley, trial lawyer and Washington politician, supports Obamacare and caught putting down Chuck Grassley to an out-of-state crowd,” says the voiceover. Included in a clip of Braley criticizing Grassley, the Iowa Republican, as a “farmer who never went to law school.”