Biden's 'big boy' NATO news conference carries high stakes as first presser since disastrous debate

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President Biden is slated to face the media late Thursday afternoon in his first solo press conference since his disastrous debate last month, and it's anticipated that he'll be grilled as the nation weighs his mental acuity amid heightening health concerns.

Biden is expected to hold the news conference on Thursday at 5:30 p.m. after hosting NATO leaders in Washington, D.C., this week. The media has dubbed the press conference a "big boy press conference," with the president fielding questions from the media solo. It marks Biden's first solo press conference of the year and the first time he will speak to the media at a presser since his debate against former President Trump on June 27, Fox News found.

Biden is facing heightened concerns over his health in the wake of his poor debate performance, which opened floodgates of concern in the Democratic Party that the president's 81 years of age and alleged slipping mental acuity will cost the party as the Biden campaign squares up against Trump.

At least nine elected Democrats have called on Biden to drop out since the debate, and at least 23 Democrats, including former Speaker of the House Nancy Pelosi and Reps. Adam Schiff and Jamie Raskin, have expressed concern over Biden’s performance and re-election effort.

DEMOCRATS, MEDIA DEMAND BIDEN DO MORE INTERVIEWS, PRESS CONFERENCES AMID DEBATE FALLOUT

Biden has vowed to