ST. PAUL, MN - SEPTEMBER 04: U.S. Sen. Sam Brownback (R-KS) speaks on day four of the Republican National Convention (RNC) at the Xcel Energy Center on September 4, 2008 in St. Paul, Minnesota. U.S. Sen. John McCain (R-AZ) will accept the GOP nomination for U.S. President Thursday night. (Photo by Alex Wong/Getty Images)