US President Joe Biden has said he backs a bipartisan Senate border deal that gives him powers to shut down the southern border "when it becomes overwhelmed".
"If given that authority, I would use it the day I sign the bill into law," he said in a statement on Friday.
Mr Biden urged lawmakers to pass the deal, calling it the "toughest and fairest" set of reforms seen yet.
The border deal faces objections from right and left.
Former President Donald Trump has also tried to tank the deal, urging Republican House Speaker Mike Johnson to only accept it if it is "perfect on the border".
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