Biden is said to be finalizing plans for migrant limits as part of a US-Mexico border clampdown

WASHINGTON (AP) — The White House is finalizing plans for a U.S.-Mexico border clampdown that would shut off asylum requests and automatically deny entrance to migrants once the number of people encountered by American border officials exceeded a new daily threshold, with President Joe Biden expected to sign an executive order as early as Tuesday, according to four people familiar with the matter.

The president has been weighing additional executive action since the collapse of a bipartisan border bill earlier this year. The number of illegal crossings at the U.S.-Mexico border has declined for months, partly because of a stepped-up effort by Mexico. Still, immigration remains a top concern heading into the U.S. presidential election in November and Republicans are eager to hammer Biden on the issue.