Sen. Blumenthal claimed some concerns were allayed while others were deepened after a critical meeting between Biden campaign advisers and Democratic senators.
The Democratic narrative that concerns about Biden's age were unfounded took a hit this week after calls came from Hollywood for the president to drop out.
The White House and Biden campaign denied reports Thursday that advisers are working on a plan to convince the president to bow out of the 2024 election.
While many Democrats call on President Biden to drop out of the race, some of those floated as potential replacements for the nomination remain supportive of his re-election bid.
Hungary's tenure as president of the European Union prompted its leader to kick off a blitz of meetings with foreign leaders, including in Ukraine and Russia.