https://www.foxnews.com/politics/first-dem-senator-calls-biden-drop-out-for-good-country

Two prominent Democrats are openly acknowledging concerns about President Joe Biden’s age at a crucial time for their own political future.

https://www.politico.com/news/2024/02/20/biden-age-down-ballot-00142223

Doesn't meet the question criteria, but Democrats are inching closer.

Including independents who caucus with the Democrats.

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