Taking on Trump: The 2020 democratic candidates

Gone are the days in American presidential races when a candidate would rise or fall on policy differences. Today, Democrats choosing their candidate for the 2020 race are asking just one question — does the person have what it takes to stay the course and defeat Republican Donald Trump?

First, the candidates will have to fight it out among themselves in debates this year, and in party primary voting contests next year, during which they could inflict serious damage on each other and dangerously weaken their candidacy in the general election. So far, 13 have formally declared their candidacy, and at least seven others are also likely to decide to run. Here is a profile of the announced candidates and what their chances of success look like at this stage of the battle.