In a letter, Sen. Orrin Hatch invites leaders from both chambers of Congress to meet to hammer out an agreement with the White House over pending trade deals with South Korea, Panama, and Colombia.

Sen. Orrin Hatch (R-Utah) wrote Monday in a letter to leaders in both chambers that a “mock conference” should be scheduled in the near future on resolving the dispute over Trade Adjustment Assistance, which Republicans oppose but which the Obama administration has maintained must be included in the South Korea deal.

“Reconciling the two bills is the exclusive prerogative of Congress, a prerogative which cannot rightfully be devolved to the Executive branch,” Hatch wrote to House Speaker John Boehner (R-Ohio), House Minority Leader Nancy Pelosi (D-Calif.), Senate Majority Leader Harry Reid (D-Nev.) and Senate Minority Leader Mitch McConnell (R-Ky.).

“Therefore, as Ranking Member on the Senate Finance Committee, it is my expectation that a ‘mock conference’ will be scheduled shortly, thereby providing Congress with the opportunity to present to the president a template for drafting a final implementing bill which has the support of both Houses.”

(See also related Reuters and The Hill stories.)