Democrat Joe Biden goes into his first debate with Republican Donald Trump with recent experience from the primaries
Democrat Joe Biden goes into his first debate with Republican Donald Trump with recent experience from the primaries AFP / JIM WATSON

Four polls released on Sunday and Monday show Democratic nominee Joe Biden with a strong nationwide lead over Republican President Donald Trump.

On Monday, Monmouth University released a survey that showed Biden with a 5-point edge over Trump, 50%-45%, while a poll from TheHill/HarrisX had Biden with a 5-point lead over the incumbent, 45%-40%.

On Sunday, a New York Times/Siena survey showed Biden with an 8-point lead over Trump, 49%-41%, while an ABC News/Washington Post poll had Biden with a 10-point edge, 54%-44%. When factoring third-party candidates, the ABC News/Washington Post survey showed Biden at 49%, Trump at 43%, Libertarian Jo Jorgenson at 4% and Green Party candidate Howie Hawkins at 3%.

On Tuesday evening, Biden and Trump will square off for their first debate.

In September 2016, Democratic candidate Hillary Clinton had a 6-point edge over Trump prior to the first debate, 43% to 37%. Clinton won the popular vote over Trump, 48.2%-46.1%.

The debate will be a crucial moment for both Biden and Trump. Biden will likely hit Trump over his response to the COVID-19 pandemic and a recent report about Trump's tax returns. Trump will likely attack Biden over his past support for free-trade deals and his tenure as vice president in the Obama administration.

Recent swing state surveys show some dire signs for Trump. A New York Times/Siena survey in Pennsylvania showed Biden with a 9-point lead over Trump, 49%-40%. A recent NBC/Marist survey shows Biden up 8 points in Michigan, 52%- 44%. Trump won both states by a narrow margin in 2016.

Meanwhile, the race is tighter in the Sun Belt. A Susquehanna survey released Tuesday showed Biden with a 3-point lead in Florida, 46%-43%. A Meredith College poll shows both candidates even in North Carolina. Polls have also encouraging for Biden in traditionally red states Arizona, Georgia and Texas.