The short answer: The President’s pardon power comes from the English king’s power of mercy. The framers wrote it into the Constitution with few limits so the President could soften harsh justice and calm the country in times of unrest.
The presidential pardon power derives from Britain and continued in the creation of the United States Constitution. The founders hoped this power would be a useful tool for a president to combat injustice.
“…he shall have Power to Grant Reprieves and Pardons for Offences against the United States, except in Cases of Impeachment.” — Article II, Section 2 of the United States Constitution

In this short clause, the United States Constitution granted the office of the President an extremely powerful tool with little restrictions attached. Granting a presidential pardon is only one tool the president can use. Pardons, commutations of sentences, reprieves, and remission of fines are all tools the president can employ, utilizing this clemency power. Generally, when we say the “pardon power,” we mean the power to do all of these things.
This clause’s origin derives from the British monarchy. The Founding Fathers borrowed from what they already knew. The royal prerogative of mercy is a tradition in Britain where the monarch holds the power to grant pardons. This royal power for many centuries was used by the monarch to commute death sentences. It was also used for more economic means, like in exchange for money or military service.
In modern time, the British monarchs have used this power infrequently. The most recent pardon came from Queen Elizabeth, who posthumously pardoned Alan Turing. Turing helped crack the Enigma Code during WWII but was convicted in 1952 of “gross indecency” for being gay. The pardon came in 2013, after his death.
Like the United States’ presidential pardon power, the royal prerogative has little restrictions. It can be used to change any sentence or penalty imposed on someone convicted of a crime.
Before the Constitution, the Articles of Confederation did not create a President or a national pardon power.
“Humanity and good policy conspire to dictate, that the benign prerogative of pardoning should be as little as possible fettered or embarrassed.” — Alexander Hamilton – The Federalist #74
Hamilton was a staunch supporter during the Constitutional Convention for adding a clemency clause. He also was adamant that the power should only be held by one person. Clearly, his desire was followed by the other Founding Fathers. However, not everyone was sold. Neither the Virginia Plan nor the New Jersey Plan included the presidential pardon power. George Mason, a Virginia Plan supporter, believed that the power should not be held by one person. Having just seceded from an all-powerful monarch, it is not surprising that some of the founders would be wary about giving this power to the head of state only and with complete autonomy.
Charles Pinckney introduced a proposal during the convention, giving the president the same complete power that the English monarch held. Some delegates believed that treason should be excluded from the pardon power. Article II, Section 2, Clause 1 reflects the final proposal. The president alone holds the pardon power for any federal offense, except in cases of impeachment.
President George Washington first used the presidential pardon power in 1795. The U.S. government implemented a new set of taxes on whiskey. This angered many, including many farmers. The Whiskey Rebellion began when individuals began rioting. President Washington led the militia to put down the Rebellion. Two rebels were convicted of treason and sentenced to death. Realizing the fragility of the situation and the popular support for the rebels, President Washington pardoned them. This was one purpose that was discussed for the proposal of the pardon power. Tempering justice with mercy was one of the reasons Alexander Hamilton was such a strong supporter for the power. Realizing that justice can be harsh, and publicly can be disagreeable, the president holds this power to bring humanity and good policy together.
Other presidents used the pardon power in the same vein as President Washington. President John Adams pardoned the leaders of Fries’s Rebellion, a tax revolt in Pennsylvania. President Abraham Lincoln and President Andrew Johnson issued presidential pardons to many soldiers who fought for the Confederacy. President Gerald Ford and President Jimmy Carter granted pardons for Vietnam-era draft evaders.
Over time, Presidents came to rely on the Justice Department to review clemency requests. The Office of the Pardon Attorney, which took that name in 1894, is dedicated to reviewing petitions for clemency (Office of the Pardon Attorney, Frequently Asked Questions). Each year, the president is inundated with thousands of petitions for clemency. The Office reviews each one and investigates the claims. They then make a recommendation to the President. The President is under no obligation to follow the recommendation by the Office, nor is anyone required to send a petition to the Office to receive clemency. Most recently, and perhaps most notably, President Trump pardoned Joe Arpaio, the former sheriff who was convicted of criminal contempt for not following a court order. Joe Arpaio never sent a clemency application to the Office.
The modern pardon power has evolved over the years. It has now become not just an act of mercy or to temper emotions, but a way to persuade policy and make political statements.
As a precursor to President Obama’s Clemency Initiative, President John Kennedy pardoned individuals who were convicted of crimes under the Narcotics Act of 1956. President Kennedy believed the penalties to be too harsh. Fast-forward a few decades, President Obama made it a significant policy act to commute thousands of non-violent drug offenders to draw attention that the current drug sentencing scheme is unduly burdensome, especially on minorities.
There have been several high-profile pardons over the years. President Ford pardoned President Nixon. President Bill Clinton pardoned his half-brother Roger, who had served about a year in prison on a drug conviction. President Ronald Reagan pardoned New York Yankees owner George Steinbrenner for charges of illegal campaign contributions to President Nixon’s campaign.
The presidential pardon power is a useful tool. History shows that presidents can use this power at very opportune times to move legislation, make political statements, or to grant mercy.