Ahead of his first trip to the US-Mexico border, and meetings with Mexican President Andrés Manuel López Obrador this week, President Joe Biden’s administration announced stringent new immigration rules last Thursday, capping humanitarian parole visas at 30,000 per month to eligible people from Cuba, Haiti, Nicaragua, and Venezuela. The new rule doesn’t replace Title 42, the contentious authority former President Donald Trump imposed at the height of the Covid-19 pandemic that allows the US to rapidly expel migrants, ostensibly to limit the spread of the disease. Instead, the new rules expand the powers granted under Title 42, enabling the administration to rapidly expel certain migrants who don’t follow the correct…