Kyrsten Sinema

Two congresswomen will face off in the sole Arizona Senate debate Monday evening, capping a contest that could determine which party controls the U.S. Senate.

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A competitive U.S. Senate race between Democratic Congresswoman Kyrsten Sinema and Republican Rep. Martha McSally is headed to at least one debate.

AP Photo/Ross D. Franklin

Three Arizona Republicans are vying to compete for the Senate seat being vacated by Jeff Flake just days after the death of the state's longtime senator, John McCain.

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Arizona Rep. Martha McSally has told Republican colleagues that she's running for the U.S. Senate seat being vacated by Sen. Jeff Flake.

JIM MOSS FACEBOOK

One of four Democrats running for the U.S. Senate seat currently held by retiring Republican Jeff Flake says he's pulling the plug on his campaign.

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