MATAMOROS, Mexico (AP) — A ragged migrant tent camp next to the Rio Grande is a long way from Mexico’s National Palace, where a U.S. delegation met this week with Mexico’s president seeking more action to curb a surge of migrants reaching the U.S. border . But as Mexican officials in the city of Matamoros dispatched heavy machinery to clear out what they claimed were abandoned tents at the camp, the action was a likely sign of things to come. The United States has given clear signs, including temporarily closing key border rail crossings into Texas, that it wants Mexico to do more to stop migrants hopping freight cars, buses and trucks to the border. President Andrés Manuel López Obrador said he got a worried phone call on Dec. 20 from U.S. President Joe Biden. Read more Biden and Congress are mulling big changes on immigration. What are they and what could they mean? Washington’s center of gravity on immigration has shifted to the right. Can the parties make a deal? Illinois scraps plan for building migrant winter camp due to toxic soil risk “He asked, Joe Biden asked to speak with me, he was worried about the situation on the border because of the unprecedented number of migrants arriving at the border,” López Obrador said Thursday. “He called me, saying we had to look for a solution together.” Mexico, desperate to get the border crossings reopened to its manufactured goods, started to give indications it would crack down a bit. López Obrador said Thursday that Mexico detained more migrants in the week leading up to Christmas than the United States did, with Mexican detentions rising from about 8,000 per day on Dec. 16 to about 9,500 on Dec. 25. That increased effort appeared to be on display in […]