Trump-Zelensky call

Over 1000 historians have signed this statement condemning President Trump's actions.

A case from almost a decade ago reveals the peril faced by whistleblowers seeking to expose wrongdoing.

The constitutional standard for impeachment is different from what’s at play in a regular criminal trial.

The Nixon impeachment proceedings and their parallels with the Trump-Ukraine scandal.

From Alexander Hamilton to Richard Nixon and more: meddling, fixing, rigging, fraud, and violence.

Gouverneur Morris’s views changed during the Constitutional Convention — setting a good example for senators today.

The Constitution originally provided for the selection of senators by state legislatures, but the 17th Amendment changed that, and with it, the Senate itself.

An historian debunks the vice president’s op-ed.

Why criminalizing political opposition can be dangerous.

Breaking with party unity can be costly. In the 1950's, Senator Margaret Chase Smith of Maine faced backlash after she condemned McCarthy, a fellow Republican.

For Nixon stalwarts on the House Judiciary Committee, defending the President became an inalterable epitaph.

In 1935, the case went to the Supreme Court, which upheld the Senate’s power to jail a recalcitrant aviation industry lawyer.

In the Watergate era, high-level aides prevented Nixon’s abuses of power. Trump’s underlings can do the same.

Liesl Schillinger Considers the Impeachment of Donald Trump vs. the Indictment of George III.

Conspiracy theories have been a central feature in American politics since before the Revolution.

Fox News shields President Trump, but his love for their conspiracies might bring him down.

Awaiting a Senate trial might curtail Trump's worst behaviors.

Roy Cohn connects the McCarthy era to the age of Trump across more than half a century.

Since the founding, Congress has supported democracy and public integrity by protecting those who spoke up about abuses of power.

Long before President Donald Trump, there was President John Tyler.