The story

Arizona Sen. John McCain, whose White House aspirations went into a nose dive last summer, clinched the Republican Party's presidential nomination Tuesday night with a sweep of GOP contests in four states.

"I am very, very grateful and pleased to note that tonight, my friends, we have won enough delegates to claim with confidence, humility and a great sense of responsibility, that I will be the Republican nominee for president of the United States," McCain told supporters in Texas.

CNN estimates that McCain has amassed 1,195 delegates to the GOP's September convention in Minneapolis-St. Paul, Minnesota, four more than the 1,191 needed to claim the party's nomination. Read full article »

CNN correspondent Dana Bash and political editor Mark Preston contributed to this report.

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