Away from their candidate and the television cameras, some of Mr. Trump’s aides are quietly conceding just how dire his political predicament appears to be, and his inner circle has returned to a state of recriminations and backbiting. Mark Meadows, the White House chief of staff, is drawing furious blame from the president and some political advisers for his handling of Mr. Trump’s recent hospitalization, and he is seen as unlikely to hold onto his job past Election Day…

Instead of a delivering a focused closing message aimed at changing people’s perceptions about his handling of the coronavirus, or making a case for why he can revive the economy better than Mr. Biden can, Mr. Trump is spending the remaining days on a familiar mix of personal grievances, attacks on his opponents and obfuscations. He has portrayed himself as a victim, dodged questions about his own coronavirus testing, attacked his attorney general and the F.B.I. director and equivocated on the benefits of mask-wearing…

Mr. Stepien and other campaign leaders, including Jason Miller, a senior strategist, have stressed to Republicans in Washington that they expect to outperform the public polls. They say their own data suggests a closer race in a number of states, including Arizona and Pennsylvania, than surveys conducted by news organizations. They are wagering that voter registration and the turnout machinery Mr. Trump’s team has built over the past four years will ultimately give them an edge in narrowly divided states on Election Day.