KENNEBUNKPORT, Maine — Jeb Bush and his allies revealed Thursday they had amassed more than $114 million in campaign cash over the past six months, dwarfing the combined fund-raising of his Republican rivals for the party's presidential nomination.

The announcements, made as many of his donors were gathering at his family's compound in Maine to celebrate their success, established Bush as his party's financial powerhouse. Almost all of the money was raised before Bush formally declared his candidacy last month, collected by a super PAC that Bush's aides helped set up.

Bush personally raised money for the super PAC at dozens of events during the winter and spring, operating under the assumption that he was free to do so because he was not yet a declared presidential candidate.