Seattle (CNN) Bill Clinton, while campaigning for his wife in Spokane, Washington, on Monday, seemingly knocked President Barack Obama's legacy in a riff that his aides said was unintended.

"If you believe we can rise together, if you believe we've finally come to the point where we can put the awful legacy of the last eight years behind us and the seven years before that where we were practicing trickle-down economics, then you should vote for her," the former president said about his wife.

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Republicans immediately seized on the comment, with the Republican National Committee arguing that the comment "is about as off message as you can get" in an email to reporters.

A Bill Clinton aide later clarified that the former President was "referring to the GOP's obstructionism and not President Obama's legacy."

The former President regularly heralds Obama, especially while campaigning for Hillary Clinton , a candidate who has gone lengths to tie herself to the legacy of the two-term Democratic President.

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