Republican Martha McSally speaks at a rally for President Trump on Oct. 19 in Mesa, Ariz. McSally is in a tight Senate race with Democratic Rep. Kyrsten Sinema.

Republican Martha McSally speaks at a rally for President Trump on Oct. 19 in Mesa, Ariz. McSally is in a tight Senate race with Democratic Rep. Kyrsten Sinema.

Republican Martha McSally speaks at a rally for President Trump on Oct. 19 in Mesa, Ariz. McSally is in a tight Senate race with Democratic Rep. Kyrsten Sinema.

Republican Martha McSally speaks at a rally for President Trump on Oct. 19 in Mesa, Ariz. McSally is in a tight Senate race with Democratic Rep. Kyrsten Sinema.