In addition to headlining 37 rallies for Mr. Obama over the last seven weeks of the campaign [alone], …Mr. Clinton is serving as a back-channel strategist for the re-election enterprise.

Bill Clinton Presses On in Campaign for Barack Obama – The New York Times

Not even but her husband headlined nearly as many events in six weeks for Obama as Bernie did for Hillary over the course over the entire campaign.

…Makes recents claims about Bernie supporting the nominee in 2016 ring weak and hollow.