President Joe Biden faces close scrutiny in public appearances on Thursday and over the U.S. holiday weekend, as he resists pressure to end his reelection bid after a poor debate performance raised concerns about his stamina and mental acuity.
The 81-year-old Democrat’s shaky showing at a June 27 debate with Republican rival Donald Trump has sparked questions about his ability to keep up a grueling pace of work for the next 4-1/2 years and calls from some in his party to step aside.
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