evidence: Biden makes his first visit to the southern border as president President Biden is visiting the U.S.-Mexico border for the first time as president on Sunday, stopping in El Paso, Texas, on his way to Mexico. The visit comes after two years of back-and-forth with Republicans over the Biden administration's immigration policy. [...] Republican Texas Gov. Greg Abbott, who has sent many of the buses, hand-delivered a letter to Biden during his visit. The governor has been one of the most vocal critics of the Biden administration's immigration policy.