The US House of Representatives dealt a blow to President Donald Trump on Tuesday, approving a resolution blocking him from obtaining funding for a Mexican border wall through his declaration of a national emergency.
Dismissing a veto threat by the president, the Democratic-controlled House struck down Trump's emergency declaration by a comfortable margin of 245-182, sending the measure to the Republican-held Senate.
Thirteen Republicans joined Democrats in voting to "terminate" Trump's emergency declaration, which the Republican president issued on February 15 after failing to secure billions of dollars from Congress for the wall.
The emergency declaration would allow Trump to find funding for the Mexican border wall -- his signature campaign promise -- from other sources, notably the Pentagon budget for military construction projects.
The president has threatened to veto the resolution if it passes both the 435-member House and the 100-seat Senate, where Republicans hold a 53-47 edge and its prospects are uncertain.
Democrats have denounced the emergency declaration as a power grab by the president and a violation of the Constitution because it usurps the power of Congress to decide government spending.