He had promised a veto of the resolution ending his emergency declaration as soon as the measure was circulated on Capitol Hill.
The other Republicans who voted to oppose the declaration were Sens.
He hit his usual (exaggerated) talking points on the drugs and criminals pouring over the border and said that Democrats and Republicans could come to an accord on "catch and release" laws in "15 minutes" if the political will was there.
Twelve Republicans joined the Democrats in voting for the resolution, saying that Trump is circumventing Congress's enumerated power of the purse to appropriate funds and using them as he pleases. "Watch, when you get back to your State, they will LOVE you more than ever before!" he said.
"People hate the word invasion, but that's what it is".
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It mentions cancer , neurological disorders, and DNA damage as among the possible harms some research has linked to EMF exposure. The most obvious and well-established risk of radiowaves is that, at high levels, they can generate heat and cause burns.
Trump's veto sends the resolution back to the US House of Representatives, which is expected to pick it up after the week-long congressional recess.
The declaration is already the subject of a legal challenge.
"Many such emergencies dealt with matters less threatening than the ongoing crisis on the southern border". "That shift has placed a substantial strain on border-security resources".
"The President acted well within his discretion in declaring a national emergency concerning the southern border", the Justice Department argues in the letter, a copy of which was reviewed by The Washington Post. The measure ultimately passed 59-41, and Trump immediately vowed to veto. The House previously passed the resolution last month, 245 (including 13 Republicans) to 182. Mike Lee, R-Utah; Rob Portman, R-Ohio; Susan Collins, R-Maine; Lisa Murkowski, R-Alaska; Marco Rubio, R-Fla.; Rand Paul, R-Ky.; Lamar Alexander, R-Tenn.; Roger Wicker, R-Miss.; Roy Blunt, R-Mo.; Jerry Moran, R-Kan.; and Pat Toomey, R-Pa.
On Friday, Barr also said the president's emergency order was "clearly authorized under the law".