It was 54 years ago today that a joint session of Congress approved the Gulf of Tonkin Resolution, an act that led to the Vietnam War’s escalation and the eventual passage of another act seeking to curb presidential powers.

Last July, we looked at the debate over presidential self-pardons as part of a review of overall executive pardon powers under the Constitution. Here’s a recap of those arguments in light of the current debate over that subject.

After being impeached, President Andrew Johnson survived his 1868 Senate trial by just one vote. And to this day, how that vote was cast remains shrouded in controversy.

April 23 marks the birthday of James Buchanan, the man regarded by many historians as one of the worst presidents of all time. So what did Buchanan do to earn the disrespect of so many people?

On this day in 1789, the First Congress under our current Constitution met in its first joint session in New York and undertook an important order of business: confirming George Washington’s election as President.

On this day in 1867, United States Secretary of State William Seward signed a deal acquiring Alaska, an agreement that was ridiculed by some as “Seward’s Folly” and opposed in the House.

On March 28, 1834, the U.S. Senate censured President Andrew Jackson in a tug-of-war that had questionable constitutional roots but important political overtones.

It was 150 years ago today that the United States Senate began the first trial of a sitting United States President after the House approved impeachment charges against President Andrew Johnson.

In an act of “judicial jujitsu,” the Supreme Court issued its decision in Marbury v. Madison on February 24, 1803, establishing the high court’s power of judicial review.

On Monday, President Donald Trump’s personal attorney made a pointed argument in a media interview that a President can’t be charged with obstructing justice.  On further review, that statement and the opinions of legal experts about it are under some close scrutiny.