WASHINGTON — The Senate voted to block President Trump's emergency declaration to fund a border wall, setting up the first possible veto of President Trump's administration.

The Senate voted 59-41 to block the declaration, with 12 Republicans joining Democrats.

The resolution already cleared the House, which means it will head to President Trump's desk. Trump says he plans to reject the measure.

It would then be up to Congress to override the veto. It's not expected that the House and Senate will have the votes to override that veto.

The emergency declaration would set aside $3.6 billion more to border barriers than lawmakers approved.

Florida’s two Republican senators split on the vote. Sen. Marco Rubio joined Democrats and 11 Republicans to reject the President’s national emergency, while Sen. Rick Scott voted against it and sided with the White House. 

“I cannot support moving funds that Congress explicitly appropriated for construction and upgrades of our military bases. This would create a precedent a future president may abuse to jumpstart programs like the Green New Deal, especially given the embrace of socialism we are seeing on the political left,” Rubio wrote in a statement.

Many Republicans maintain the President is justified in utilizing a national emergency to secure the border. 

“It’s completely within his power to do that, he has every right to do that,” said Rep. Neal Dunn (R-Florida) 2nd District, who voted against the measure in the House a few weeks ago. 

 “For years, everyone in both parties has said they want to secure our border, but they never did anything about it. It’s time to get serious about border security and the safety of American families. That’s why I support the President’s efforts to secure the border and voted against the resolution of disapproval today,” Sen. Scott wrote in a statement. 

While others in the party couldn’t support the way the President went about securing the funds for the border wall. 

“My oath of office is to the Constitution, not to a political party or a person. I am friends with this President, I am supportive of most of his agenda. But I can’t go against my oath of office, which says Congress is the body that has to approve spending,” said Sen. Rand Paul (R-Kentucky) following the vote.

Constitutional concerns appeared to be a common theme among the Republicans who voted to pass the resolution.

“Congress is saying, hold on here, when Congress passes a bill and you sign it, that’s the end of the story of the funding for that. Article 1, section 9 gives the power of the purse to Congress, and Congress wants to keep it,” Sen. Mitt Romney (R-Utah).

“He’s not only defying the will of the people and now Congress, but also the Constitution of the United States. That’s a very dangerous road to go down,” said Sen. Richard Blumenthal (D-Connecticut). 

It’s unlikely Congress will have the votes to override the President’s veto, but the House is expected to attempt to override it at the end of the month.