Trump says he will declare illegal immigration a national emergency in border crackdown

Migrants wait in line for asylum processing by Mexico's COMAR in Tapachula

WASHINGTON - Newly sworn-in U.S. President Donald Trump said on Monday that he would declare illegal immigration a national emergency, send troops to the U.S.-Mexico border, and reinstate his "remain in Mexico" policy as part of a sweeping immigration crackdown.

Trump also said he would seek to stop all illegal entries and detain all migrants caught crossing illegally.

(Reporting by Ted Hesson in Washington; Editing by Lisa Shumaker)