The group, Ready for Hillary, is an independent effort and does not have the support of Clinton herself, but has signed on some Clinton allies to help the cause.

One of those allies, longtime Clinton friend and adviser Harold Ickes, is meeting with two dozen “leading Democratic donors” for a Thursday breakfast to discuss the group’s plans going forward. It held a similar event on Wednesday that drew 60 attendees.

The breakfast is being hosted by one of President Obama’s top 2012 fundraisers, public relations executive Michael Kempner.

“The event is part of a big push to expand Ready for Hillary’s finance committee and boost fundraising numbers before the June 30 filing deadline,” a source told CNN.