The Senate historian says it was the first time a vice president had to break a tie on a Cabinet nomination.

Two Republicans joined Democrats Tuesday to vote to derail DeVos’ nomination. Democrats cited her lack of public school experience and financial interests in organizations pushing charter schools. DeVos has said she would divest herself from those organizations.

Republicans Susan Collins of Maine and Lisa Murkowski of Alaska fear that DeVos’ focus on charter schools will undermine remote public schools in their states.

In an earlier tweet, President Donald Trump wrote “Betsy DeVos is a reformer, and she is going to be a great Education Sec. for our kids!”