Joe Biden is within the margin of error of denying President Trump a win in Ohio and possibly a second term in the White House.

Biden, the presumptive 2020 Democratic nominee, leads the incumbent with 46% support to 45% in the crucial state that’s picked the presidential victor since 1964, according to a Quinnipiac University poll released Wednesday. This is the university’s first survey since the two-term vice president and 36-year Delaware senator became his party’s apparent standard-bearer.