Traditionally Trump has held an advantage over Biden on the economic front, but that advantage has eroded due to the coronavirus outbreak, the CBS News reported.
In the 2016 US election, late votes in Wisconsin and Pennsylvania had ensured Trump's win. However, recent polls have suggested that the crucial swing states are leaning towards the Democratic candidate.
Voters in Wisconsin and Pennsylvania believe the Trump presidency has not gone as expected. Biden has cut into Trump's White, non-college voters, an important support base for the president.
Over 60 per cent of the poll participants dislike how the president handles himself and over half believe their problems are better understood by Biden.
Biden presently has a lead of about 6 points but that could change quickly, the CBS reported.
Nearly half of Biden's supporters say that the vice presidential pick will influence their decision come election day.
The US presidential election will be held on November 3.