Opponents of President Donald Trump's declaration of a national emergency at the U.S.-Mexico border appear to have enough Senate votes to reject his move, now that Republican Rand Paul of Kentucky has said he can't go along with the White House.
The House has voted to derail the action, and if the Senate follows later this month, the measure would go to Trump for his promised veto.
Three other Republican senators have announced they'll vote "no" - Susan Collins of Maine, Lisa Murkowski of Alaska and Thom Tillis of North Carolina. Paul makes it four, and assuming that all 47 Democrats and their independent allies go against Trump, that would give opponents 51 votes - just past the majority needed.
Congress is unlikely to have the votes to override.