MEXICO CITY – Mexico’s economy is facing economic and political challenges with a weakening U.S. dollar and drop in demand for goods. Still, Mexico’s perils have done little to put a dent in the popularity of President Andrés Manuel López Obrador. His approval numbers have increased, thanks in part to GOP leaders whose threats of U.S. intervention against cartels and fentanyl labs on Mexican soil has AMLO, as the president is known, whipping the country into a nationalistic frenzy. Crenshaw has traded barbs with López Obrador, including a tweet in flawless Spanish. Sen. John Cornyn, R-Texas, is leading a bipartisan group of lawmakers this weekend to meet with López Obrador in Mexico.