This is following Biden actually getting out from the basement and making a few appearances. He just doesn’t have it, even in his prime he was a bad candidate:
https://pro.morningconsult.com/trackers/2024-presidential-election-pollingTrump retakes lead: Trump leads Biden among all voters by 1 percentage point, 44% to 43%. The race remains in a narrower state compared to before the Super Tuesday primary contests, when Trump consistently led throughout January and February.
Trump has a slight popularity edge: Trump has retaken a net favorability advantage over Biden, though the bulk of the electorate is still more likely to hold negative views about both major party contenders. However, voters are still more likely to report hearing something negative about Trump than Biden.