NYT:

Shortly after the Democratic presidential primary debate on Saturday night, Senator Bernie Sanders’s campaign announced that he had outpaced Barack Obama’s record for the number of contributions in a presidential race, with more than 2.2 million donations.

Mr. Obama’s record was 2,209,636 donations, according to a release from Mr. Sanders. Aides to the senator and Democratic presidential candidate suggested that it happened during the debate Saturday, and that the average donation during that period was $25 or less.