On March 10, 2004, Bush officially clinched the number of delegates needed to be nominated at the 2004 Republican National Convention in New York City. Bush accepted the nomination on September 2, 2004, and selected Vice President Dick Cheney as his running mate. (In New York, the ticket was also on the ballot as candidates of the Conservative Party of New York State.) During the convention and throughout the campaign, Bush focused on two themes: defending America against terrorism and building an ownership society. The ownership society included allowing people to invest some of their Social Security in the stock market, increasing home and stock ownership, and encouraging more people to buy their own health insurance.

By what date did Bush obtain the number of votes required to become the 2004 Republican nominee?