A new Marquette Law School Poll national survey finds a close presidential race: former President Donald Trump receives 51% and President Joe Biden gets 48% among registered voters, while Biden has a 51% advantage over Trump’s 49% among likely voters—those who say they are certain they will vote in the presidential election. The difference in advantage shows how the outcome of the election may be determined by the success of respective efforts to mobilize voters over the coming 13 months.