Trump and Biden compete on the US-Mexico border. Because of bipartisan politicization of the issue, Congress has failed for decades to pass bipartisan legislation on immigration and border security.
Biden's visit came a week before he delivers the State of the Union address on March 7. Trump visited the Eagle Pass area, 300 miles from Brownsville, which is the densest crossing point in terms of the number of immigrants crossing the US border illegally. The visit comes as part of Democrats' efforts to focus more on immigration, which recent opinion polls show is a top priority for voters.