4th November 2026
Impeachment in the United States is not just a mechanism for dealing with an unpopular or controversial President. It can also be used against Cabinet secretaries, federal judges and other senior government officials.
With Democrats gaining greater influence in Congress, understanding this constitutional power helps explain how America's system of checks and balances is supposed to work.
When discussions turn to American politics, impeachment is usually associated with the President. Donald Trump has already experienced the process twice, although on both occasions the Senate found him not guilty and he remained in office.
But there is a much wider constitutional power that receives considerably less attention.
The American Constitution allows Congress to impeach not only the President and Vice-President but also other federal officials, including Cabinet secretaries and federal judges.
This means that the political consequences of the Democrats gaining control of Congress could extend well beyond the White House.
It raises an interesting question: could officials responsible for carrying out controversial government policies themselves face impeachment?
Where did impeachment come from?
The idea is not originally American.
Impeachment developed in Britain during the medieval period as a way for Parliament to hold powerful officials accountable for their conduct.
It was used against royal advisers and senior figures who might otherwise have been beyond the reach of ordinary political accountability.
The American founders adopted the principle when drawing up their Constitution in 1787.
They wanted a system in which powerful officials could be held responsible for serious misconduct, rather than relying entirely on elections or the willingness of a President to dismiss someone.
The American Senate describes impeachment as an important part of the constitutional system of checks and balances.
It was intended to provide a means of investigating and removing officials who abused the public trust.
Who can be impeached?
The American Constitution identifies the President, Vice-President and federal civil officers as subject to impeachment.
This includes Cabinet secretaries, such as the Secretary of State, Secretary of Defence, Attorney General and Secretary of Homeland Security.
Federal judges are also covered, including Supreme Court justices.
The position of some lower-ranking federal employees is less straightforward, but the principle clearly extends beyond the President and the Cabinet.
Interestingly, members of Congress themselves cannot be impeached. Senators and members of the House are subject to separate disciplinary and expulsion procedures.
State governors and other state officials may also face impeachment, but under the constitutions and procedures of their own states.
How does the process work?
Impeachment involves two separate stages.
The House of Representatives investigates and decides whether formal charges should be brought.
If a simple majority approves articles of impeachment, the official is impeached. This means they have been formally charged, not that they have already been found guilty.
The matter then goes to the Senate, which conducts the trial.
A two-thirds majority of senators present is required to convict and remove the official from office.
The Senate can also vote to disqualify someone from holding federal office in the future.
The process is therefore deliberately difficult. A simple congressional majority can bring charges, but removing someone requires considerably wider agreement.
There is another important distinction. Impeachment is not a criminal trial. Congress decides whether an official should be removed from public office. Separate criminal proceedings may follow if there is evidence of an offence.
It has happened to a Cabinet secretary before
This is not simply a theoretical possibility.
In February 2024, the Republican-controlled House of Representatives impeached Alejandro Mayorkas, then Secretary of Homeland Security, over his handling of immigration and border security.
The accusations concerned alleged failures to enforce immigration laws and breaches of public trust.
However, when the matter reached the Senate in April 2024, the charges were dismissed.
Democrats argued that disagreements over immigration policy and the administration of the border did not amount to the serious misconduct required for impeachment.
The episode demonstrated something important: impeachment can be used against a Cabinet secretary, but it can also become a highly political exercise.
It also illustrates why the Senate's role matters. A House majority alone cannot remove an official.
Federal judges are also accountable
Another aspect that may surprise people is that American judges can be impeached.
This includes judges appointed for life, whose independence is otherwise protected by the Constitution.
The reason is that judicial independence does not mean immunity from serious misconduct.
A judge involved in bribery, corruption or serious abuses of office can face impeachment.
There have been several examples.
Federal judge G. Thomas Porteous Jr. was impeached and removed from office in 2010 following findings involving corruption and financial misconduct.
Other federal judges have also been removed through the process.
However, impeachment is not supposed to be a means of punishing judges simply because politicians disagree with their rulings.
That distinction is important. Judges must be able to make decisions according to the law without fearing removal whenever a political majority dislikes the outcome.
What happens to senators and members of Congress?
Members of Congress are treated differently.
A senator or representative cannot be impeached, but each chamber has constitutional authority to discipline its own members.
This includes formally censuring a member or, in more serious circumstances, expelling them.
Expulsion requires a two-thirds majority in the relevant chamber.
Members of Congress can also face ordinary criminal investigations and prosecution.
For example, a senator accused of accepting bribes could be investigated by federal authorities, prosecuted in court and potentially expelled by colleagues.
Being elected to Congress does not provide immunity from criminal law.
Could Trump's own Cabinet face investigations?
This is where the issue becomes particularly relevant to the changing political balance in Washington.
If Democrats control the House, they could investigate the conduct of senior officials responsible for implementing Trump's policies.
The Secretary of Homeland Security could face questions about immigration enforcement, ICE detention facilities, deaths in custody and government contracts.
The Attorney General could face scrutiny over the independence of criminal investigations and the treatment of political opponents.
The Secretary of Defence could be questioned about military decisions, the war with Iran, defence contracts and the use of public money.
These investigations would not automatically justify impeachment.
However, if evidence emerged of serious misconduct, the House could consider formal charges.
Even without impeachment, the prospect of public hearings, demands for documents and questioning under oath could place considerable pressure on senior officials.
Some might resign rather than face prolonged investigations.
Could impeachment become a political weapon?
There is a danger that impeachment becomes an extension of ordinary party-political disagreements.
The 2024 Mayorkas case provides an example of how sharply Republicans and Democrats can disagree over whether a Cabinet secretary's actions justify removal.
The constitutional wording refers to treason, bribery and other high crimes and misdemeanours.
The precise meaning of the final phrase has been debated throughout American history.
It is not simply a list of ordinary criminal offences, but neither is it intended to mean that every unpopular policy decision is grounds for removal.
There must be a serious question of misconduct or abuse of public trust.
If impeachment becomes a routine response whenever political control changes, it risks undermining the very constitutional protections it was designed to provide.
How does Britain compare?
There is an interesting contrast with the British system.
Britain does not have an equivalent modern parliamentary impeachment process for removing a Prime Minister or Cabinet minister.
Instead, ministers are accountable to Parliament through questions, debates, select committee investigations and votes of confidence.
The Prime Minister can dismiss ministers, and ministers can be required to resign following serious mistakes or breaches of the Ministerial Code.
The Ministerial Code sets out expected standards of conduct, but the Prime Minister remains the ultimate judge of whether a minister has breached it and what consequences should follow.
Members of Parliament can also be suspended or expelled from their parties, while criminal allegations can be dealt with through the normal courts.
There are therefore different routes to accountability, but Britain does not have the same constitutional procedure in which the elected lower chamber brings impeachment charges and the upper chamber conducts a trial.
What could happen next in America?
The Democrats' increased influence in Congress could bring a new period of scrutiny for the Trump administration.
The most important areas may include immigration enforcement, government contracts, alleged conflicts of interest, the independence of the Department of Justice and the conduct of military operations against Iran.
Investigations could involve several senior officials rather than concentrating exclusively on the President.
However, Democrats would need evidence of serious misconduct if they wanted to move from investigation to impeachment.
They would also need sufficient support in the Senate to secure convictions and removals.
That is a much higher hurdle than simply winning congressional votes.
Accountability must extend beyond the President
There is a wider lesson here for democracies everywhere.
A government consists of many people exercising public power. Presidents and Prime Ministers make important decisions, but Cabinet ministers, senior officials, judges and other office-holders also have responsibilities.
An effective system of accountability must be capable of examining their conduct too.
The American Constitution provides one mechanism for doing this, although its effectiveness depends heavily on whether politicians are prepared to put constitutional responsibilities ahead of party loyalty.
For ordinary voters, the important question is not simply whether one political party can defeat another.
It is whether those entrusted with public money and public authority can be held accountable when things go wrong.
A democracy needs more than elections. It needs institutions capable of asking difficult questions of everyone who holds power.