After days of opposition and hours before the federal government was going to shut down, Trump signed a $2.3 trillion bill into law Sunday night to avert a government shutdown and extend $900 billion in coronavirus pandemic relief -- but millions of American will be impacted by his delay.

Trump’s Sunday night signature came after two critical unemployment programs lapsed over the weekend, leaving roughly 14 million Americans who have relied on the income without a week of benefits during the holiday season. While the current bill shells out $600 direct payments for most Americans, Trump is breaking from his party by continuing his push to bring that amount to $2,000.

In a Sunday night statement announcing he had signed the bill, Trump -- who has sat on the sidelines of negotiations for months -- also called on Congress to make more revisions to cut down excess spending, saying "wasteful items need to be removed" from the bill and that he would send back a “redlined” version.

The move is forcing Senate Republicans, many who did not support more direct payments, to say whether they stand with Trump on increasing payments and revisiting the bill’s language or by their previous positions.

House Speaker Nancy Pelosi on Monday is bringing a vote on a stand-alone bill to increase economic impact payments to $2,000 to the House floor, and while it’s expected to pass the House, it’s unclear whether Senate Majority Leader Mitch McConnell will take up the measure in the Senate.

The president has no public events on his schedule as he continues his holiday from Mar-a-Lago, and threatens, via Twitter, a challenge to the counting of the Electoral College vote in Congress on Jan. 6.

Biden, meanwhile, is pressing forward with his transition with less than a month until his inauguration. The president-elect is slated to meet with members of his national security and foreign policy agency review teams on Monday and deliver afternoon remarks on their "findings and the key challenges his administration will inherit" from Wilmington, Delaware.

The House on Monday overwhelmingly voted to override Trump's veto of the must-pass sweeping defense policy bill known as the National Defense Authorization Act.

The final vote was 322-87, receiving the two-thirds majority it required. There were 109 Republicans who voted to override the veto and 20 Democrats voted to sustain it.

The Senate is expected to hold its own veto override vote later this week.

If the Senate also overrides the president's veto, it will be the first time Congress has successfully rejected a presidential veto during Trump's presidency.

Shortly before the vote, GOP Rep. Mac Thornberry of Texas, the ranking member of the House Armed Services Committee, urged his colleagues to vote for “the exact same bill” they did before, emphasizing that “not a comma has changed.”

“I would only ask that as members vote, they put the best interests of the country first,” Thornberry said. “There is no other consideration that should matter."

The bill initially cleared both chambers of Congress with veto-proof majorities earlier this month. Trump then officially vetoed the bill last week because it didn't include a repeal of Section 230, a law that shields internet companies from being liable for what is posted on their websites by them or third parties. The bill also included a provision that would rename military bases named after Confederates, which Trump opposed.

The $740 billion bill includes pay raises for America's soldiers, improvements in body armor for women, coronavirus relief, military housing improvements and boosted sexual harassment prevention and response measures, among other items. It has passed both chambers of Congress for 59 years straight with strong bipartisan support.

Some Republicans voted to sustain Trump’s veto despite supporting the bill earlier this month.

The defense bill must become law before noon Jan. 3, when the new session of Congress begins, or it will expire.

-ABC News' Mariam Khan