Former president Bill Clinton is billed as a special guest at a fundraiser for his wife's campaign on Monday afternoon in Maryland. (Danny Johnston/AP)

As former Maryland governor Martin O’Malley continues to struggle to gain traction in the presidential race, two of his state’s most prominent Democrats are co-hosting a fundraiser Monday night to benefit their preferred candidate: Hillary Rodham Clinton.

Former president Bill Clinton is billed as the “special guest” at the event, which will be held at the Chesapeake Beach, Md., home of state Senate President Thomas V. Mike Miller Jr. (D-Calvert). U.S. House Minority Whip Steny H. Hoyer (D-Md.) is list as the other host on the invitation, a copy of which was obtained by The Washington Post.

The minimum contribution level to attend the late afternoon gathering is $1,000.

[O’Malley raises only $1.3 million during latest fundraising quarter]

Miller and Hoyer have both been on board with Clinton for some time, but the timing of the event underscores the grave challenges facing O’Malley.

On Thursday night, about an hour before the midnight filing deadline, he reported to the Federal Election Commission that his campaign had raised only $1.3 million in the previous quarter. Clinton raised $29.5 million during the same stretch, while Sen. Bernie Sanders (I-Vt.) took in $26.2 million.

Moreover, there’s been no groundswell of home-state support for O’Malley, a former two-term governor and former mayor of Baltimore. O’Malley is backed by just 4 percent of voters who are Democrats or Democratic-leaning independents in a potential presidential primary matchup in Maryland, according to Washington Post-University of Maryland poll released this week.

[O’Malley broadens exposure but unlikely to soar after first debate]

O’Malley boosters had been hoping Tuesday’s debate in Las Vegas -- the first for the Democratic field -- would jump-start his campaign. But so far, there’s little concrete evidence of that.

A Suffolk University/Boston Globe poll of likely Democratic voters in New Hampshire conducted after the debate showed Clinton and Sanders in a statistical dead heat in the first primary state, with Clinton drawing 37 percent support to Sanders’s 35 percent. O’Malley remained stuck at 1 percent.