The plans span several House committees and could include investigations, subpoenas and legislative action. Some Democrats have also said impeachment proceedings against Trump or members of his Cabinet could be considered, depending on the findings of congressional investigations.

House Democratic leader Hakeem Jeffries of New York, who could become speaker if his party gains the majority, said Democrats would use congressional oversight powers to investigate allegations of corruption and abuses of authority.

“There is a cost to the American people of the out-of-control corruption,” Jeffries said.

“If folks have been stealing from the American people, shortchanging the American people or screwing over the American people,” he added, “we are going to hold the crooks accountable.”

Congress has broad authority to conduct oversight of the executive branch. Democrats have already outlined many of their areas of interest through letters to administration officials, court filings and inquiries launched while in the minority.

Among the issues Democrats want to examine are the business activities and financial interests of Trump and his family. They have raised questions about the family’s financial gains since Trump returned to the White House in January 2025.

Democratic lawmakers have also sought investigations into possible civil rights violations involving Americans killed during protests against U.S. Immigration and Customs Enforcement operations, as well as the treatment and deportation of immigrants to third countries.

Other areas of potential scrutiny include the Trump administration’s handling of the Kennedy Center, private funding connected to America’s 250th anniversary celebrations and the dismantling or restructuring of federal programs and agencies, including the U.S. Agency for International Development.

Lawmakers are also raising questions about the Trump family’s acknowledgment that part of a recent wedding celebration for Donald Trump Jr. was funded by a Russian businessman whom critics have described as having close ties to the Kremlin.

Rep. Jamie Raskin of Maryland, who could become chairman of the House Judiciary Committee under a Democratic majority, described the range of potential investigations as “gargantuan.”

“We need to zero in quickly on the forms of systemic corruption that have cost the public huge amounts of money,” Raskin said, adding that lawmakers should focus particularly on areas where Congress could pursue legislative remedies.

If Democrats take control of the House, Jeffries could also face pressure from some members of his caucus to pursue impeachment proceedings against Trump.

Trump was impeached twice by the House during his first presidency — the only U.S. president to have been impeached twice. The Senate acquitted him in both cases.

The scope and direction of any new investigations would ultimately depend on the outcome of the November elections and the priorities established by a new House majority.