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By Staff Reporter
World leaders paid tribute to Joe Biden after the US president announced that he won’t be standing for reelection in November. He is the first sitting president since 1968 to drop out of a presidential race.
Biden, 81, had been under intense pressure from senior figures in the Democratic party to step aside after a catastrophic debate performance against Donald Trump last month fueled doubts about whether he would be able to beat his Republican rival and raised alarm about mental acuity.
