"We've got too big a government now," said Giessel, who said he now plans to support Ron Paul.
Romney added 22 RNC endorsements since the last AP survey in early April, and he has support from every region of the country. None of Romney's rivals was able to gain much traction among the RNC delegates. Gingrich had four endorsements at one point, more than any of the others.
Drew Johnson, a Gingrich delegate from South Carolina, said he thinks the state's delegates will unite behind Romney. South Carolina, a solidly Republican state, was one of only two states Gingrich won in the primaries.
"Romney has my endorsement and he can count on South Carolina to be one of his biggest cheering sections at the national convention," said Johnson, who leads the Chester County Republicans. "My focus is crystal clear for the upcoming election. We will be making calls to any state it is needed and even send South Carolina activists to real swing states to defeat Obama."
Associated Press writers Erik Schelzig in Nashville, Tenn.; Andrew DeMillo in Little Rock, Ark.; Phillip Rawls in Montgomery, Ala.; Becky Bohrer in Juneau, Alaska; Meg Kinnard in Columbia, S.C.; Kristen Wyatt in Denver, Colo., and Glenn Adams in Augusta, Maine, contributed to this report.
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.