US Election 2020: Meet the voters behind Bloomberg's surge

He's one of the richest men in the world, a polarising candidate in a crowded race and he's about to make his first appearance on the debate stage after rising to second place in the polls. So who are Mike Bloomberg's supporters, and why have they backed him?

Recent polling by NPR/PBS/Marist puts Mr Bloomberg in second place, behind Bernie Sanders, with 19% of the Democratic vote.

Mr Bloomberg will no doubt face questions on his political past - including recently revealed comments on women, farmers and minorities - on...