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McCain: The GOP Needs Immigration Reform

AP Photo / Tobias Hase

"I would urge my house colleagues to consider whatever way they want to pursue to try to address this issue because it's going to have to be addressed," he said.

McCain is optimistic about immigration reform's chances this year, and he warned that the issue cannot wait until 2015 when Republicans are competing in primary races.

"I won't give up," he said. "We have the broadest coalition of support of any legislation I've ever been involved in."