By Evan Halper

Tribune Washington Bureau

WASHINGTON, D.C. — Donald Trump is facing his most serious Cabinet confirmation battle yet after two GOP senators on Wednesday announced that they will be voting against his nominee for secretary of education, Betsy DeVos.

In speeches on the Senate floor, both Sen. Susan Collins of Maine and Sen. Lisa Murkowski of Alaska said they were troubled by the lack of understanding DeVos had of broader public school issues beyond her signature cause of promoting school choice in struggling urban communities. Their plans to vote against DeVos threw her nomination into turmoil.

DeVos currently does not have any support from Senate Democrats. She now needs every remaining Republican to vote for her to force a tie on the Senate floor, which could then be broken by Vice President Mike Pence. White House officials expressed confidence that DeVos will be confirmed despite the misgivings of Murkowski and Collins.

The turbulence reflects the challenges Trump faces in working with Congress, even when it is controlled by his own party. And it comes at a time when some fellow Republicans are eager to send the administration the message that failing to work in concert with Congress — as Trump neglected to do before issuing the poorly executed weekend executive orders on immigration — can be perilous to his agenda.

In her floor speech, Collins said DeVos’ focus on charter schools and vouchers “raises the question about whether or not she fully appreciates that the secretary of education’s primary focus must be on helping states and communities … strengthen our public schools.”

Collins said she was “troubled and surprised” that DeVos lacked familiarity with the landmark Individuals with Disabilities Act, guaranteeing appropriate education to children with special needs.

Murkowski said she has received thousands of calls from voters expressing alarm about DeVos. “They’re very concerned that Mrs. DeVos will force vouchers on Alaska,” she said. “Mrs. DeVos has much to learn about our nation’s public schools, how they work and the challenges they face.”