KEY POINTS
  • Arizona Gov. Doug Ducey will appoint GOP Rep. Martha McSally to the late Sen. John McCain's Senate seat. 
  • McSally lost a Senate election in November to Democratic Rep. Kyrsten Sinema. 
Martha McSally, Republican U.S. Senate candidate from Arizona, speaks during a campaign rally outside the Historic Yavapai County Courthouse in Prescott, Arizona, U.S., on Monday, Nov. 5, 2018. Surging turnout has both Republicans and Democrats proclaiming they stand to benefit, as polls show tight races up and down the ballot that will determine control of Congress, state houses and governors mansions nationwide. Photographer: Caitlin O'Hara/Bloomberg via Getty Images

Republican Arizona Gov. Doug Ducey will appoint Rep. Martha McSally to fill the late Sen. John McCain's seat.

McSally will succeed Sen. Jon Kyl, the longtime lawmaker who rejoined the Senate for only a few months following McCain's death in August. McSally, a 52-year-old congresswoman, will serve with Democrat Kyrsten Sinema in the next Congress. Sinema defeated McSally in the race for retiring GOP Sen. Jeff Flake's seat in November.