President Donald Trump signed more executive orders aimed at shutting down the southern border, but the details on how migrants would be blocked from crossing remain unclear.

A wide-ranging series of executive orders that President Donald Trump has promised to beef up security at the southern border Monday began taking effect soon after he was inaugurated Monday, making good on his defining political promise to crack down on immigration.

President Donald Trump kick-started his second tenure at the White House on Monday with a slew of policies aimed at fundamentally reshaping the United States immigration system. He declared a national emergency at the U.

On the first day of his second term, President Donald Trump announced a series of executive actions addressing immigration and border security. Signing orders his officials called "common-sense immigration policies,

Trump has broad authority to issue such orders, but many of his more sweeping actions are likely to face legal challenges before they can take effect.