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- Sen. Kyrsten Sinema announced on Tuesday that she wouldn't seek reelection.
- Arizona won't be the site of an epic three-way Senate race as many had predicted.
- Instead, it will be a head-to-head race between Rep. Ruben Gallego and Kari Lake.
Sen. Kyrsten Sinema is not running for reelection — denying the political world the opportunity to see what would've been one of the most fascinating Senate races in recent memory.