The speech underscored President Trump's continued focus on immigration, which he called the nation's "number one issue."

The new president said he would designate drug cartels terrorists and send troops to the southern border to repel an “invasion," even as crossings are at a low.

Immigration officials are already taking action along the Texas-Mexico border. The American Civil Liberties Union has already filed at least one lawsuit.

Eye on Politics breaks down some of the biggest political stories grabbing headlines in North Texas and beyond.

Border Patrol Chief Jason Owens is retiring in April, and will be replaced by Texas Border Czar Mike Banks, after a historic crisis at the southern border.

Mike Banks, who has spearheaded Texas Gov. Greg Abbott's border crackdown, is expected to be appointed Border Patrol chief after President-elect Donald Trump is sworn into office.