Guess who's coming to Bush's dinner? Porn star and former candidate Mary Carey.

Carey's boss, hard-core porn producer Mark Kulkis of Los Angeles, has ponied up $5,000 for two tickets to a National Republican Congressional Committee event called the President's Dinner and Salute to Freedom. Kulkis, who locked in his tickets by credit card yesterday, tells us he will take the 24-year-old Carey (real name: Mary Cook ) as his date.