Democratic presidential candidates rushed to denounce President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Thursday after the White House announced the president's plans to declare a national emergency to fund his demand to build a border wall.

Sens. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.), Kamala Harris Kamala HarrisButtigieg stands in as Pence for Harris's debate practice First presidential debate to cover coronavirus, Supreme Court Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (D-Calif.), Elizabeth Warren Elizabeth WarrenHarris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda Judd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report MORE (D-Mass.) and Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.) joined a chorus of their Democratic colleagues in denouncing Trump's plan,

“Trump’s inability to follow through on a campaign promise is not a national emergency,” Booker tweeted.

Trump’s inability to follow through on a campaign promise is not a national emergency.



Let’s not forget those still struggling to rebuild their lives after this administration failed to respond effectively to real emergencies in places like Puerto Rico. https://t.co/NMSRnvKJQF — Cory Booker (@CoryBooker) February 14, 2019

“Declaring a national emergency over this President's vanity project is ridiculous. We don't need a wall. Instead, we should address the actual emergencies facing our country — everything from gun violence to the opioid crisis,” Harris tweeted soon after.

Declaring a national emergency over this President's vanity project is ridiculous. We don't need a wall. Instead, we should address the actual emergencies facing our country — everything from gun violence to the opioid crisis. — Kamala Harris (@KamalaHarris) February 14, 2019

“Gun violence is an emergency. Climate change is an emergency. Our country's opioid epidemic is an emergency. Donald Trump's ridiculous wall is not an emergency,” Warren said in a tweet.

Gun violence is an emergency.

Climate change is an emergency.

Our country's opioid epidemic is an emergency.



Donald Trump's ridiculous wall is not an emergency. — Elizabeth Warren (@ewarren) February 14, 2019

“An outrageous abuse of power—not to mention waste of taxpayer dollars—if he goes through with this ludicrous idea. Drop the absurd wall and do your job,” Gillibrand said.

An outrageous abuse of power—not to mention waste of taxpayer dollars—if he goes through with this ludicrous idea. Drop the absurd wall and do your job. https://t.co/kEWdIXjNjr — Kirsten Gillibrand (@SenGillibrand) February 14, 2019

The White House and Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.) announced Thursday that Trump will sign a spending bill that allots $1.375 billion for roughly 55 miles of new barriers along the southern border, but said the president will also declare a national emergency to make up the remainder of the $5.7 billion he had initially demanded.

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All four 2020 candidates voted against the funding bill.

Trump had threatened for weeks to declare a national emergency to secure border wall funding and follow-through on one of his signature campaign promises. The declaration of a national emergency is expected to draw legal challenges.

“We’re very prepared, but there shouldn’t be [legal challenges]. The president’s doing his job. Congress should do theirs,” White House press secretary Sarah Sanders said in a statement.

Several Republicans in both chambers, meanwhile, have called on the White House to avoid the declaration. McConnell said Thursday he would support the president.

Senate Minority Leader Charles Schumer Chuck SchumerSenate Democrats introduce legislation to probe politicization of pandemic response Schumer interrupted during live briefing by heckler: 'Stop lying to the people' Jacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee MORE (D) signaled that Democrats will fight Trump on the plan.

"There is word the president will declare a national emergency. I hope he won't. That would be a very wrong thing to do," he said, adding that he and Speaker Nancy Pelosi Nancy PelosiPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare House lawmakers reach deal to avert shutdown Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill MORE (D-Calif.) will issue a more formal response "in short order."

The emergency declaration is subject to a resolution of disapproval, which must pass both chambers and requires Trump's signature.