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US Vice President Mike Pence (C) arrives on Capitol Hill in Washington, DC, February 7, 2017.
The US Senate was poised to vote Tuesday on President Donald Trump's choice for education secretary -- Betsy DeVos, a deeply controversial billionaire champion of taxpayer-funded alternatives to public education. After debating through the night, the Senate scheduled a vote for noon (1700 GMT), with Vice President Mike Pence likely to step in to break a tie, in a rare intervention allowed under the US Constitution.
/ AFP / JIM WATSON (Photo credit should read JIM WATSON/AFP via Getty Images)