Arizona Gov. Doug Ducey on Tuesday quietly met with Sen. John McCain (R) and his wife, Cindy, at the couple’s home outside Sedona, Ariz., GOP sources in the state told The Hill. The meeting, which was not on the governor's official schedule, comes amid speculation over whom the Republican governor would appoint to fill the Senate seat should the ailing 81-year-old senior lawmaker and Vietnam War hero unexpectedly leave office. McCain is battling an aggressive form of brain cancer known as glioblastoma and has remained in Arizona since mid-December. GOP sources with knowledge of the meeting Tuesday said they did...