Some Democrats have criticized Phillips since he mounted a longshot primary bid against the incumbent president last month.
Rep. Dean Phillips Says He Won't Seek Reelection Amid 2024 Run
Dean Phillips announces primary challenge against Joe Biden
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Rep. Dean Phillips is challenging Biden in Democratic presidential race: This is an election about the future - CBS News
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Dean Phillips announces he won't seek House re-election in 2024 as challenge to second Biden term continues
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