WASHINGTON Joe Biden holds an 8-point lead over President Donald Trump in a head-to-head match-up for president, according to a new poll from Quinnipiac University, as the former vice president moves from likely to presumptive Democratic nominee. The poll, released Wednesday, found Biden is the top choice among 49% of registered voters and Trump the top choice of 41%. Biden is boosted by self-identified independent voters, who support him over Trump 44%-35% It’s a slightly tighter race than when a Quinnipiac Poll in March found Biden ahead of Trump, 52% to 41%.