Back in August, Republican presidential candidate John McCain stunned the audience at Pastor Rick Warren's Saddleback Forum by citing Democratic Congressman and civil rights icon John Lewis as one of the "wisest people that you know that you would rely on heavily in an administration." On Saturday, Lewis offered McCain some sage advice - and a stern warning - about the disgusting turn his increasingly ugly campaign had taken. Unsurprisingly, the supposed maverick shunned his supposed adviser's wisdom that the McCain campaign and its Republican allies were "playing with fire" by "sowing the seeds of hatred and division."At Warren's Saddleback event with Barack Obama this summer, McCain surprised many by adding Lewis to a troika of trusted advisers featuring the usual suspects General David Petraeus and former Bay CEO Meg Whitman:WARREN: This first question deals with leadership and the personal life of leadership. First question, who were the three wisest people that you know that you would rely on heavily in an administration?MCCAIN: [...] I think John Lewis. John Lewis was at the Edmund Pettus Bridge. Had his skull fractured. Continues to serve. Continues to have the most optimistic outlook about America. He can teach us all a lot about the meaning of courage and commitment to causes greater than ourself...Afterwards, Congressman Lewis responded to the news of his previously unknown role as a Republican presidential adviser by noting:"Senator McCain and I are colleagues in the U.S. Congress, not confidantes. He does not consult me. And I do not consult him."But on Saturday, Lewis did offer McCain some counsel and a stinging rebuke. In the wake of McCain campaign events in which Barack Obama was threatened and called a "terrorist," an "Arab," and a "traitor," Lewis blasted McCain and his running mate:"As one who was a victim of violence and hate during the height of the Civil Rights Movement, I am deeply disturbed by the negative tone of the McCain-Palin campaign. Sen. McCain and Gov. P...