Public Opinion Strategies, a polling firm used by NBC News in its latest poll, revealed a massive mistake in a survey released Sunday that appeared to show President Joe Biden ahead by 3 percentage points nationally.
Former President Donald Trump, not Biden, had been ahead by 3 points in a multicandidate race, according to a statement from the company. The company acknowledged its mistake Sunday night, well after many Democrats had seized the poll as an opportunity to buoy Biden.
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