House Democrats are fundraising off of 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’s expected veto of a resolution blocking his national emergency declaration to allocate funds for a U.S.–Mexico border wall.

In a Thursday campaign email paid for by the Democratic Congressional Campaign Committee (DCCC), House 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.) accused the president and "his Republicans" of "undermining" Democrats.

“While our Democratic Majority fights tooth-and-nail for you, Donald Trump and his Republicans are undermining us at every turn. I need you and your $1 to defeat his radical agenda,” Pelosi wrote in the email.

ADVERTISEMENT

“I’m encouraged the Senate just condemned the President’s unlawful national emergency to build an ineffective and expensive border wall. But I just got word Trump will VETO our concerns -- despite the will of the American people,” she continued.

Pelosi added that "only grassroots Democrats can defeat Trump’s wrong priorities."

"After an AWFUL week of Trump’s disastrous agenda, I know if I can get 5,000 grassroots donations in the door before his veto, Trump’s big day would be RUINED," she wrote.

The campaign came shortly after the Senate voted against the White House in blocking Trump's national emergency declaration to construct the U.S.-Mexico border wall. Twelve Republicans bucked party lines to deliver Trump the most significant rebuke of his administration.

Trump declared after the vote Thursday that he would veto the resolution. Neither chamber is expected to muster the votes needed to override his veto.