The poll comes as Democrats line up for a chance to take on Trump in the 2020 presidential election. The survey suggests that 41 percent of voters would definitely or probably vote for Trump in 2020, against 48 percent who said they would vote for the Democratic candidate. Early polls have shown that among front-runners for the Democratic nomination are former Vice President Joe Biden, 76, who is still deciding whether to run, and Vermont Senator Bernie Sanders, 77, who has announced another presidential bid.
