John McCain's struggling campaign for the Republican nomination received a charity check from former Secretary of State Colin Powell...but no endorsement.

Powell spokeswoman Peggy Cifrino confirmed to CNN that the retired General made the contribution after learning that the senator's campaign was low on funds, though she stressed this is not a formal endorsement of the candidate.

"John is a longtime friend of General Powell's," said Cifrino. "But he has not endorsed John McCain nor any other candidate."

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