The question of electability — who has the best chance of defeating Trump in November — has been central to the debates during the early stages of the Democratic primary. In a Sept. 27-30 poll, voters across the board were most likely to say Biden has the best chance of beating Trump in this year’s election — a trend that endured throughout 2019.

Against Trump, Biden outperforms all of the other leading contenders among white male voters, though he trails Trump by 12 points. Also, the former vice president leads Trump among middle-income Americans, 45 percent to 43 percent, the only Democratic candidate to do so.

Biden’s the choice of suburbia, too. He bests Trump by 8 points among suburban voters and by 5 points among suburban white women, the largest margins of any of the other top Democrats.