The U.S. Senate on Thursday voted to block the national emergency that President Donald Trump had declared to bypass Congress and get funds needed to build a wall at the border with Mexico.

The proposal to reverse Trump's move was passed with a 59-41 vote after it passed the House last month; twelve Republican senators broke with the president to join the Democrats in voting against the wall.

Following the vote, Trump took to Twitter with a simple message: "VETO!"

"I look forward to VETOING the just passed Democrat inspired Resolution which would OPEN BORDERS while increasing Crime, Drugs, and Trafficking in our Country. I thank all of the Strong Republicans who voted to support Border Security and our desperately needed WALL!"

It would be the first time that Trump uses his veto power since he took office. However, neither the Senate nor the House of Representatives appears to have enough support to override Trump's veto with a two-thirds majority vote.

"The president's emergency declaration is an end run around Congress, plain and simple," said Senator Tom Udall, a Democrat from New Mexico, one of four US states that border Mexico.

"I am here to tell you there is no national security emergency along the border in New Mexico."