Main Street in downtown Eagle Pass, Texas, is quiet as Laurel Cadena pushes a stroller with her 3-week-old daughter nestled inside, a stark contrast from hours before when dueling protests over U.S.-Mexico border policy filled the air with shouts and chants. Many customers cross the border legally from Piedras Negras, the Mexican city on the other side of the Rio Grande, to buy everything from clothes and flowers to a replica of the Eiffel Tower. But in the past year, Eagle Pass has attracted other visitors: thousands of migrants crossing the river illegally and Texas National Guard troops trying to stop them, sparking a political and legal standoff between Texas' Republican Governor Greg Abbott and President Joe Biden's Democratic administration.