Yesterday, we went inside Donald Trump’s campaign for president, to understand how he’s trying to turn a mountain of legal trouble into a political advantage. Today, we turn to the re-election campaign of President Biden.Reid Epstein, who covers politics for The Times, explains why what looks like a record of accomplishment on paper, is turning out to be so difficult to campaign on.Guest: Reid J. Epstein, a politics correspondent for The New York Times.Background reading: In South Carolina, Democrats see a test of Biden’s appeal to Black voters.Political Memo: Should Biden really run again? He prolongs an awkward conversation.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.