This year, about 45 percent of the $90 million raised by Obama’s reelection campaign from April through September came from donors who each gave less than $200 in aggregate donations, according to The Post’s analysis of Federal Election Commission records. When money that Obama has helped raise for the DNC is included, the figure is 36 percent.

Either way, the share is higher than in 2008, when about a quarter of the $755 million raised directly for Obama’s campaign came from the smallest donors.