Senate Democrats are planning a 24-hour protest of Betsy DeVos' nomination for Secretary of Education.
"Democrats will hold the floor for the next 24 hours, until the final vote, to do everything we can to persuade just one more Republican to join us," Sen. Patty Murray (D-WA) said Monday.
DeVos' confirmation vote is scheduled for noon Tuesday. Currently, DeVos is likely to face a 50-50 tie, which Vice President Pence will break in her favor.
Sens. Bob Casey (D-PA) and Brian Schatz (D-HI) said they would participate.
Two Republican senators, Sen. Susan Collins (R-ME, pictured) and Sen. Lisa Murkowski (R-AK) said they would not vote for DeVos, bringing about the tie. If one other Republican defected, DeVos would be voted down.
DeVos has faced harsh criticism for her lack of understanding of of issues key to education and her advocacy of guns in schools to protect children from bear attacks.
She is also a strong advocate for charter schools. Critics argue that could put public schools at risk.
However, no other Republicans have said they would vote against her. DeVos has donated millions of dollars to the party in the past.
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