Marco Rubio's top negotiator prompted conflict-of-interest concerns - CNNPolitics.com

Washington (CNN)Marco Rubio made a risky decision three years ago during high-profile immigration talks: He hired as his chief negotiator a corporate attorney who represented clients with a direct stake in the legislation.

The move surprised some on Capitol Hill, given the potential of a conflict-of-interest over hiring Florida lawyer Enrique Gonzalez, a friend of Rubio's for roughly two decades.