Sen. Joni Ernst (R-Iowa) took a jab at Democratic presidential front-runner Hillary Rodham Clinton, repeating a comment Clinton had made about Ernst while campaigning for the senator's opponent last fall.

Clinton had criticized Ernst's record on women's issues in a stump speech for Democrat Bruce Braley in the 2014 midterm election: "It's not enough to be a woman. You have to be committed to expand rights and opportunities for women."

Ernst repeated Clinton's comment in an interview on CNN's "State of the Union" on Sunday, saying Clinton's gender mattered less to Iowans than her record on women's issues.

"I would say Hillary, it's not enough to be a woman. You have to care about women's issues," Ernst said, listing strong economy, "great educational system" and strong national defense as women's issues in Iowa.

"You have to be a leader with a vision, and you have to show Iowans that you want it ... and not just a woman," Ernst said on CNN.

The first-term Republican senator hosted the inaugural "Roast and Ride" event in Boone, Iowa, on Saturday, where declared and likely GOP presidential candidates delivered speeches before potential voters.

On ABC's "This Week" on Sunday, Ernst said a "Reaganesque" candidate would win the Iowa caucuses.

"We have to have somebody that will express conservative views, of course, and I'm looking for somebody that is very Reaganesque, someone that can reach all aspects of our voting population here in America, all areas, not just a select few people," Ernst said.