ANNOUNCER: The campaign for Martha McSally?
Have gone nuclear.
Congresswoman Martha McSally can't believe she's not winning.
ANNOUNCER: Instead of earning your vote…
REPORTER: McSally's pleading with her supporters to work harder.
VIDEO CLIP OF MCSALLY: It's actually ridiculous, if you think about it.
ANNOUNCER: For a better way – Kyrsten Sinema. Ranked the third most independent member of Congress and third most bipartisan. An Arizona campaign all about you. For Arizona, for Senate – Kyrsten Sinema.
SINEMA: I'm Kyrsten Sinema and I approve this message.