The two Republicans battling for the nomination in the race to replace Kentucky Sen. Jim Bunning (R) are both expecting a big boost in fundraising today.

Twenty-three GOP senators are hostinig a fundraiser for Secretary of State Trey Grayson in Washington at the headquarters of the National Republican Senatorial Committee. The event is tabbed at $500 per head.

To coincide with the national party's assistance for Grayson, Rand Paul, son of Texas Rep. Ron Paul, is holding another one-day fundraising moneybomb. Paul took in nearly a half million dollars with a similar online fundraising marathon last month, and the method helped fund his father's 2008 presidential bid.