White House spokesman Eric Schultz on Thursday addressed the ongoing back-and-forth between Democratic presidential candidates Hillary Clinton and Sen. Bernie Sanders (I-VT), saying that the former secretary of state had more than enough experience to run the White House.

Asked about Sanders’ claim that Clinton was “unqualified” for the presidency, Schultz said Clinton “comes to the race with more experience than any non Vice President” in recent campaign history, according to a White House pool report.

He added that President Barack Obama was “fortunate” to have Clinton serve as his secretary of state and was “proud of that service,” according to the pool report.

Sanders said Wednesday night that Clinton was the one who was “unqualified,” after she’d criticized Sanders’ interview with the New York Daily News editorial board and said he didn’t do his homework. In response, Clinton shot back Thursday morning that it was “kind of silly” for Sanders to say she wasn’t qualified to be president.