Donald Trump's emergency order hits wall with GOP senators. What's next?

Senate Majority Leader Mitch McConnell has made it clear to President Donald Trump that he has a choice: Move ahead with his emergency declaration at the border and risk of a rebuke from his own party – or shift gears.

McConnell acknowledged Monday the Senate is likely to pass a resolution to block Trump’s emergency declaration at the southern border. Since the measure has already cleared the House, Senate passage would send it to Trump's desk.

“I think what is clear in the Senate is there will be enough votes to pass the resolution of disapproval, which will then be vetoed by the president,” McConnell told reporters in Kentucky. “And then, in all likelihood, the veto will be upheld in the House.”

Mitch McConnell: It's clear Senate will vote against President Trump's national emergency

Rand Paul: Kentucky senator says he'll vote to block Trump's emergency declaration

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Trump has threatened to veto the resolution if it passes both chambers of Congress and lawmakers have said the emergency order's opponents do not appear to have enough votes in either the House or the Senate to override a presidential veto.