Democratic leaders are signaling plans to launch congressional investigations into prominent figures including tech executive Elon Musk and incoming White House chief of staff Stephen Miller, as they prepare to assume control of Congress in January following a sweeping victory in the midterm elections.

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The anticipated investigations set the stage for a direct confrontation with the Trump administration. Democrats are targeting high-profile officials and allies of President Donald Trump, focusing on controversial firings within the federal government and the administration’s aggressive immigration enforcement policies.

California Representative Robert Garcia, who is expected to chair the influential House Oversight Committee, said on Sunday that the committee’s initial probes would center on Musk’s role in the Department of Government Efficiency’s firing of federal workers last year. Garcia also confirmed that Miller’s leadership in the Trump administration’s immigration crackdown would be a primary focus. Speaking to CNN, Garcia noted there is “a lot of interest, not just from our committee, but from committees across the Congress to speak to Mr. Musk.”

Musk, a prominent technology executive, has drawn scrutiny for his reported involvement in the mass dismissal of federal employees, a move that critics say undermined government efficiency and morale. Lawmakers are expected to seek testimony and documents related to Musk’s communications with administration officials and his influence on staffing decisions.

Miller, who was recently promoted to chief of staff, has long been a controversial figure in the Trump administration. Garcia described Miller as the architect of what he called a “horrific, unjust” immigration policy. According to Garcia, Miller “is at the center of the major policy decisions that are happening in the administration, and so it does deserve oversight and investigation.”

The Trump administration’s immigration crackdown has been a flashpoint for criticism, especially after enforcement operations resulted in two fatal shootings by federal agents in Minnesota. The incidents have intensified calls for oversight. A Reuters/Ipsos poll conducted in October found that only 37% of respondents approved of Trump’s handling of immigration, a significant drop from 50% at the start of his term. This decline in public support has emboldened Democrats to pursue investigations into the administration’s policies and the officials responsible for implementing them.

"Stephen Miller is at the center of the major policy decisions that are happening in the administration, and so it does deserve oversight and investigation."

— Robert Garcia, Representative

Democrats’ gains in the midterm elections have positioned them to challenge the administration’s approach to both immigration and government staffing. Congressional officials and policy experts told Reuters that with Miller as chief of staff, the White House is expected to maintain its aggressive enforcement stance and resist Democratic oversight efforts. The incoming Democratic majority is expected to use its new subpoena power to compel testimony from administration officials and outside allies.

Impeachment Push Against Hegseth

In addition to the planned investigations, incoming House Speaker Hakeem Jeffries announced on Sunday that Democrats would support a measure to impeach Secretary of War Pete Hegseth. The impeachment push is based on Hegseth’s oversight of the Iran war launched by Trump in February and its subsequent impact on gas prices and the broader economy. Jeffries, speaking on ABC’s “This Week,” said he is a “hard yes” on backing the resolution, stating, “Pete Hegseth has got to go... I believe there will be incredibly strong support for that resolution.”

The Iran conflict, which began earlier this year, has become a central point of contention between Congress and the Trump administration. Lawmakers have raised concerns about the war’s economic fallout, particularly the rise in gas prices, and the administration’s handling of the conflict. Republican Representative Thomas Massie of Kentucky has indicated he will soon reintroduce articles of impeachment against Hegseth, signaling bipartisan concern over the issue.

Trump Officials Signal Resistance

In response to the Democrats’ plans, Attorney General Todd Blanche issued a warning that the administration is prepared to fight any congressional investigations. Blanche characterized threats to target administration officials and allies as “not something we can tolerate in this country.” He added, “If that’s what this new incoming leadership wants to do, we are ready. If you work in this administration, you have a lawyer. It’s me.”

The White House, for its part, has not signaled any shift in its approach to immigration enforcement or the ongoing Iran war. Officials have indicated they will not concede ground to the new Democratic majority in Congress, setting up a likely period of heightened tension and legislative gridlock.

As Democrats prepare to take control of Congress, the stage is set for a series of high-profile investigations and potential impeachment proceedings. The outcome of these efforts could have significant implications for the Trump administration’s ability to pursue its policy agenda in the coming year.