A Friday morning ruling by the U.S. Court of Appeals for the D.C. Circuit could prove a watershed moment in the ongoing struggle between the White House and the House of Representatives.

On this day in 1869, former President Franklin Pierce passed away in New Hampshire. Pierce was regarded as an ethical hard worker, but he struggled as a national leader when he openly advocated for pro-slavery states as a Northerner in the 1850s.

If you are a presidential historian or a fan of facial hair, you probably know a little about Chester Alan Arthur. For the rest of us, he’s one of the more obscure leaders in American history.

Today marks the birthday of the one of the most controversial U.S. presidents, Rutherford B. Hayes, who took office amid a constitutional crisis and left office defending his reputation.

On Tuesday, House Speaker Nancy Pelosi announced an impeachment inquiry would be made against President Donald Trump into allegations that he acted improperly in talks with Ukrainian leaders. So what is an impeachment inquiry and where does it fall in the range of the House’s constitutional powers?

President Abraham Lincoln altered the course of the Civil War and American society when the Emancipation Proclamation was issued in 1863. But the Proclamation had its roots in a key announcement made on September 22, 1862.

On September 19, 1796, a Philadelphia newspaper published one of the greatest documents in American history: George Washington’s Farewell Address.

How many bathrooms are in the White House? Who is the tallest president? Read the most asked among 3,000 questions we received on Constitution Day from students.

William Howard Taft is a truly unique American figure who led two branches of government, was a wrestling champion and the youngest Solicitor General in American history.

President Gerald Ford’s pardon of Richard Nixon on this day in 1974 generated a national controversy, but in recent years, some of the pardon’s biggest critics have changed their tunes on the unprecedented move.