The Arizona Republican called the situation in his state "the worst I've ever seen," saying ineffective border enforcement has resulted in drugs pouring into the southwestern United States from Mexico.
McCain told CBS's "The Early Show" that over a million pounds of marijuana were intercepted on the border at Tucson just in the last year. He said he's talked to law enforcement officials and believes the new law can be implemented "without racial profiling."
Under the law set to take effect in late July or August, it would be a crime to be in the United States illegally.
