Dillon said that although many national polls show a widening lead for the Democratic candidate, polls can lack precision or be faulty, which appeared to be the case in 2016.
Mr Biden, a former vice president, has hammered Mr Trump for his response to the coronavirus pandemic, which has killed more than 219,000 people in the U.S., the highest death toll in the world. Biden leads by 23 points among suburban women in battleground states, according to recent polling by The New York Times and Siena College.
Biden campaign manager Jen O'Malley Dillon said Wednesday the $383 million figure was a record and included $203 million raised from online donors.
"President Trump has delivered time and time again for the forgotten men and women of America by cutting taxes for families, providing crucial increased funding for our military, and replacing the job-killing NAFTA with USMCA", Ivanka Trump said ahead of her trip to the Great Lakes State.
"This race is far closer than some of the punditry we're seeing on Twitter and on TV would suggest", she wrote. Dillon explained. "We also know that even the best polling can be wrong, and that variables like turnout mean that in a number of critical states we are functionally tied - and that we need to campaign like we're trailing". If we were to move our town hall with President Trump to a later timeslot we would be violating our commitment to offer both campaigns access to the same audience and the same forum.
Obama said the 77-year-old Biden "made me a better president". Jon Ossoff and Raphael Warnock, the Democratic candidates vying for the state's two open Senate seats, posted similarly competitive poll numbers against their Republican opponents.
The campaign now has $432 million to spend on getting Biden elected, it said.