Local Police agents watch over the banks of the Rio Grande river while hundreds of migrants line up to be received by the El Paso Sector Border Patrol in El Paso, Texas, US, as seen from Ciudad Juarez, Chihuahua state, Mexico, on December 22, 2022. - The US Supreme Court halted December 19, 2022 the imminent scrapping of a key policy used since Donald Trump's administration to block migrants at the southwest border, amid worries over a surge in undocumented immigrants. An order signed by Chief Justice John Roberts placed an emergency stay on the removal planned for December 21, 2022 of Title 42, which allowed the government to use Covid-19 safety protocols to summarily block the entry of millions of migrants. (Photo by HERIKA MARTINEZ / AFP) (Photo by HERIKA MARTINEZ/AFP via Getty Images)
CU Law Prof Violeta Chapin on SCOTUS blocking the lifting of Title 42
Photo: Getty Images