House Democrats have introduced legislation intended to block Trump’s emergency declaration for the border crisis. The measure will also have to pass the Senate and survive a veto from President Trump.

According to CNBC:

House Democrats challenged President Donald Trump’s national emergency declaration Friday, setting up dramatic votes in Congress on whether to rein in the president’s flex of executive power.

Rep. Joaquin Castro, D-Texas, introduced the measure to block Trump’s action, which he took last week to divert money to build his proposed border wall. Democrats have called the president’s move a power grab sparked by lawmakers denying him the funding he wanted to construct barriers between the U.S. and Mexico.

The Democratic-held House will “move swiftly to pass this bill,” House Speaker Nancy Pelosi wrote to Democratic lawmakers on Thursday. It appears to have the support needed to get through the House. Also Thursday, Castro said “we have 222 co-sponsors to terminate” the declaration, more than the 218 needed for a bill to pass.

We have 222 cosponsors to terminate President Trump’s national emergency declaration to build his border wall. #FakeTrumpEmergency pic.twitter.com/guCB4PQlK2

— Joaquin Castro (@JoaquinCastrotx) February 22, 2019

The challenge for Democrats starts when the proposal goes to the GOP-held Senate. Several Republicans have showed concerns about the precedent set by Trump’s declaration. The resolution will put pressure on them to choose between acting on professed worries about expanded executive power, or backing a president with strong support among GOP voters.

It is being reported that Susan Collins from Maine will be a GOP Senator who will vote to block the emergency declaration.