Record numbers of migrants head to US border, in fresh test for Biden

FILE PHOTO: Migrants seeking asylum in the United States gather near a border wall on the banks of the Rio Bravo River, on the border between the U.S. and Mexico, as seen from Ciudad Juarez, Mexico September 19, 2023. REUTERS/Jose Luis Gonzalez/File Photo

TIJUANA (Reuters) - Thousands of migrants have crossed into the United States in recent days, from California to Texas, with many more still arriving by bus and cargo trains to Mexican border towns on the heels of record migration flows further south.

The dramatic increase along the border - notably in San Diego, California and the Texan cities of El Paso and Eagle Pass - marks a turning point after numbers had plummeted in recent months, and could create fresh political challenges for U.S. President Joe Biden heading into election season.