Sen. John McCain (R-Ariz.) will host an event for Rhode Island state Rep. John Loughlin in Washington, D.C., on Wednesday.

The event will be at the National Republican Club, with a suggested contribution of $750.

Loughlin has also secured commitments from two other 2008 presidential hopefuls -- Rudy Giuliani and Mitt Romney -- to campaign for him.

He is the GOP favorite in the race to replace retiring Rep. Patrick Kennedy (D-R.I.).