Gov. Martin O'Malley is awash with presidential attention this cycle -- invitations just went out inviting donors to an Oct. 21 fundraiser in Baltimore with former President Bill Clinton.

Deputy Campaign Manager Rick Abbruzzese would not confirm the event, say how many people are expected to attend or how much money the event is meant to raise. But, according to the invitation, the fundraiser will be at the Museum of Industry, a waterfront location frequently used for such purposes.

Ehrlich's campaign also announced a political star appearance -- he's holding an event with New Jersey Gov. Chris Christie, who warmed the hearts of fiscal conservatives this year by chopping that state's budget. Christie also, in a speech earlier this year, singled out Maryland as a state that makes poor budgeting decisions.

For O'Malley, the Clinton fundraiser will follow an appearance by President Barack Obama in Prince George's County on Thursday. Vice President Joe Biden has also stumped for O'Malley this cycle.

The Clinton event won't be open to the public. But there's some chatter that Clinton might also do a rally for O'Malley. The timing would make sense -- the former President will be here on the eve of the first early voting day.

Clinton and O'Malley have friendly history. The pair traveled to Ireland together in 2000 and Clinton had warm words for the then-newly minted Baltimore mayor at a New York Democratic leadership event that year.

Clinton also campaigned hard for O'Malley in 2006, cutting a television ad and appearing at a rally in Prince George's County. (See photo on left.)

In what was widely viewed as payback, O'Malley was one of the first governors to support Hillary Clinton's failed presidential bid.

Interestingly the two were not always so cozy. In 1992, as a Baltimore City Councilman, O'Malley managed the Maryland campaign for Sen. Bob Kerrey who vied with Clinton for the party's presidential nomination but then dropped out.