In one of them, MoveOn.org activists are targeting undecided and committed Hillary Clinton superdelegates with a clear message: wait until all the votes are counted before throwing support behind a candidate. (snip)

As of Sunday, the petition had 112,107 signatures with a goal of 125,000 signatures.

"The next big thing will be this wave of petitions targeting individual superdelegates," said MoveOn Washington Director Ben Wikler. "Asking individual members of Congress and governors and other superdelegates to individually make a pledge to support the will of the voters when it comes time to count their votes."

A second petition by three progressive groups asks superdelegates to "announce that in the event of a close race, you’ll align yourself with regular voters - not party elites." That petition, which grew by 10,000 signatures between Friday and Sunday, had 171,010 signatures Sunday, with a stated goal of 175,000.