A senior official of the U.S. Chamber of Commerce said Friday she expects the 12 countries negotiating a Pacific free trade initiative to strike a deal "before June."

Tami Overby, the chamber's senior vice president for Asia, told an event that if Congress enacts a bill that grants President Barack Obama fast-track authority to push trade deals, final offers will come together for an agreement on the Trans-Pacific Partnership.

On the timing of a deal, Overby said, "I am betting, before June."