Nationwide polls for the presidential candidates:
Emerson College poll (April 2-3): Biden 42%, Trump 43%, with Trump leading by +1.
YouGov/The Economist poll (March 30-April 2): Biden and Trump tied at 43%.
Trafalgar Group poll (March 29-31): Biden 40%, Trump 43%, with Trump leading by +3.
Morning Consult poll (March 29-31): Biden 44%, Trump 42%, with Biden leading by +2.
Big Village poll (March 29-31): Biden 42%, Trump 40%, with Biden leading by +2.
Data for Progress poll (March 27-29): Biden 41%, Trump 42%, with Trump leading by +1.
Marist College/NPR/PBS NewsHour poll (March 25-28): Biden 43%, Trump 41%, with Biden leading by +2.
Marquette University Law School poll (March 18-28): Biden and Trump tied at 41%.
Additionally, according to Gallup, 29% of Americans believe that neither former President Donald Trump nor President Joe Biden are good options for the presidency in the upcoming election.
These results suggest a close race, with leads fluctuating slightly across various polls. It's important to consider the methodology and sample size of each poll, as results can vary.