Betsy DeVos, President-elect Donald Trump’s nominee for secretary of education, just failed her first test. At her Senate confirmation hearing Tuesday night, the billionaire conservative philanthropist and “school choice” advocate appeared unprepared to answer straightforward questions about school reform, and she aired extreme views that could cause headaches for the incoming administration.

The worst of it began when Senator Al Franken, a Minnesota Democrat, asked DeVos about a longtime debate in education policy over whether students should be evaluated on their academic “growth” or “proficiency.” The nominee seemed stumped:

Franken asks the Secretary of Education nominee on her views re: proficiency vs. growth. She is not qualified to lead. #DeVosHearing pic.twitter.com/QN1HLsc1WV — deray mckesson (@deray) January 18, 2017

“I think, if I’m understanding your question correctly around proficiency, I would also correlate it to competency and mastery, so that each student is measured according to the advancement they’re making in each subject area,” she said.

“Well, that’s growth. That’s not proficiency,” Franken replied. “I’m talking about the debate between proficiency and growth and what your thoughts are on that.”

DeVos said she was “just asking to clarify,” and then Franken really pounced.