President Donald Trump's drug czar says the president's plan for a U.S.-Mexico border wall would save American lives by helping stem the flow of illegal drugs into the country.

President Donald Trump issued the first veto of his presidency on Friday, overruling Congress to protect his emergency declaration for border wall funding.

The Republican-run Senate firmly rejected President Donald Trump's declaration of a national emergency at the southwest border on Thursday, setting up a veto fight and dealing him a conspicuous rebuke as he tested how boldly he could ignore Congress in pursuit of his highest-profile goal.

President Donald Trump is signaling to Republican senators he has littler tolerance for dissent as they prepare to vote on terminating his national emergency declaration to build the border wall with Mexico.

The Pentagon is planning to tap $1 billion in leftover funds from military pay and pension accounts to help President Donald Trump pay for his long-sought border wall, a top Senate Democrat said Thursday.

President Donald Trump declared Tuesday that he would prevail over a multistate lawsuit challenging his emergency declaration to pay for a U.S.-Mexico border wall.

President Donald Trump announced Friday that he will declare a national emergency to fulfill his pledge to construct a wall along the U.S.-Mexico border.

County one of North Carolina's senators among Republicans who disagree with President Donald Trump's decision to declare a national emergency to build a wall along the US border with Mexico.

Sen. Ted Cruz is proposing a new source of funding for a border wall: recently convicted drug kingpin El Chapo.