Watch live: McSally, Sinema debate for Arizona senate seat

Reps. Martha McSally (R-Ariz.) and Kyrsten Sinema (D-Ariz.) are set to square off in Arizona for a debate Monday night in their race to fill the Senate seat being vacated by retiring Sen. Jeff Flake (R-Ariz.).

The debate is scheduled for 9 p.m. ET. 

Watch live in the video above.