Senate Republicans threatened to block a bipartisan border security bill they negotiated, just one day after their lead negotiator approved it. GOP senators said after a closed-door meeting that a procedural vote on Wednesday to advance the bill likely won't pass. Republicans want more time for amendments, though the bill was finalized on Sunday after months of negotiations. Donald Trump attacked the bill on social media, calling it “nothing more than a highly sophisticated trap for Republicans to assume the blame on what the Radical Left Democrats have done to our Border, just in time for our most important EVER Election.”