Arizona Gov. Doug Ducey will make the appointment that will fill the seat of Sen. John McCain, who died Saturday after a year-long battle with brain cancer.
Under state law the replacement must be of the same party as Mr. McCain, a Republican, according to election experts. That ensures the GOP will maintain control of the Senate — though given Mr. Ducey is a Republican as well, that was likely anyway.
Because the vacancy happened so late in the year, Mr. Ducey’s replacement will serve through the end of 2020, and the seat will next be on the ballot in November of that year. The winner would then serve out the final two years of the term Mr. McCain won in 2016 — his sixth.