Canada Just Threw A Grenade Into Elizabeth Warren's Trade Fight With Obama

President Barack Obama and Sen. Elizabeth Warren (D-Mass.) have been locked in a public feud over whether free trade agreements can be used to undermine the 2010 Wall Street reform law. On Wednesday, the Canadian government sided with Warren.

Canadian Finance Minister Joe Oliver gave a speech in New York arguing that the Volcker Rule -- a key tenet of the 2010 banking law -- violates the North American Free Trade Agreement. The move underscores Warren's warning that such deals, including the Trans-Pacific Partnership that Obama is currently negotiating, jeopardize financial reform.