Vice President Kamala Harris opened up a marginal two-percentage-point lead over Republican Donald Trump after President.

Joe Biden ended his re-election campaign and passed the torch to her, a Reuters/Ipsos poll found.

That compares withamarginal two-point deficit Biden faced against Trump in last week’s poll before his Sunday exit from the race.

The new poll, conducted on Monday and Tuesday, followed both the Republican National Convention where Trump on Thursday formaly accepted the nomination and Biden’s announcement on Sunday he was leaving the race and endorsing Harris.

Harris, whose campaign says she has secured the Democratic nomination, led Trump 44% to 42%o in the national poll, a difference within the 3-percentage-point margin of error.

Harris and Trump were tied at 44% in a July 15-16 poll, and Trump led by one percentage point ina July 1-2 poll, both within the same margin of error.

While nationwide surveys give important signals of American support for political candidates, a handful of competitive states typically tilt the balance in the U.S. Electoral College, which ultimately decides who wins a presidential election.

A pollster with Trump’s campaign played down any poling showing an increase in Harris’ support, arguing that she was likely to see a temporary rise in popuarity because of widespread media coverage of her new candidacy.