By RICARDO CASTILLO     U.S. Senate Approves USMCA While all the hoopla right now in the U.S. Senate is about President Donald Trump’s impeachment trial, in Mexico, President Andrés Manuel López Obrador (AMLO) is celebrating the approval of the United States-Mexico-Canada Agreement (USMCA). “This brings to an end an important stage because (the treaty) has been now approved by the