Republican presidential candidate Ron Paul will add party crashing to his campaign tactics this weekend.

The Texas congressman, who has struggled to top 1 percent in national polls, wasn't invited to a forum of presidential candidates Saturday in Des Moines. The gathering is sponsored by the Iowa Christian Alliance and the watchdog group Iowans for Tax Relief.

Instead of grumbling, Paul's campaign decided to hold its own party _ in the same hall as the forum. They're calling it a celebration of life and liberty.

Campaign spokesman Jesse Benton said it has been frustrating to be excluded, especially since Paul has consistently opposed abortion and is known nationally for his advocacy of lowering taxes.

"It's just a little head-scratching," Benton said.

Ed Failor Jr., executive vice president of Iowans for Tax Relief, said some candidates weren't invited in order to keep the event from stretching on too long.