WASHINGTON—Republican Sen. Marco Rubio has become the central figure in the Senate confirmation drama over President-elect Donald Trump’s choice to lead the State Department, emerging as the key vote on confirming Rex Tillerson to the nation’s top diplomatic post. A trio of Republican senators have expressed deep reservations about Mr. Tillerson, the former Exxon Mobil Corp. chief executive. In addition to Mr. Rubio of Florida, they are Sens. John McCain of Arizona and Lindsey Graham of South Carolina. The three have...

Source: Wall Street Journal January 13, 2017 23:20 UTC