Welcome to the world of progressive politics, Sen. Casey. Maybe if you tweaked a position or two, you could get to play, too.

Obama’s ability to capitalize on a sustained wave of online support has enabled him to spend almost all of his time campaigning. Clinton has attended more than a dozen fundraisers since Jan. 1, and her husband, former president Bill Clinton, has appeared at more than 40, while Obama and his wife have attended fewer than 10 during that time.

Sen. Robert P. Casey Jr. (D-Pa.), an Obama supporter, said he was shocked when he learned Obama attended just one fundraiser in February. Casey, by contrast, attended 450 fundraisers during his 2006 Senate campaign. He said a typical day involved three hours of calling donors, followed by as many as three fundraising events per night. “It was pick-and-shovel work, just chipping away.”

Casey is amazed because Obama raised a record $55 million in February, and he only held one fundraiser. That’s what happens when people like you. To get organizations to like you, you have to suck up to them. To get wealthy donors to give the maximum, you need to schmooze them. But real people-powered politics gets beyond the need for that old style of fundraising.