Falsehoods about Andrew Johnson have become a staple of Republican arguments opposing the impeachment of Trump.
President Trump's likely to be acquitted by the Senate in his impeachment trial. But the impeachment's effects won't end until lawsuits are resolved.
Trump's backers say he is shielded from removal as no criminal offense took place. But this view may be at odds with the original intent of the impeachment clause.
Post-truth questions the very nature of truth itself – that's why it's so dangerous.
Certain words are being used over and over during the impeachment trial of President Donald Trump. One of them is 'precedent.' What does it really mean?
Impeachment was a common political tool in early modern England, but its use lapsed 20 years after it was adopted in the US constitution.
Did you know that senators shouldn't be called 'jurors' in an impeachment trial? Here's a roundup of stories that give behind-the-scenes facts and context to the news event of the year – so far.
With President Donald Trump's frequent use of the term "witch hunt" he paints himself as a victim. The women persecuted in one of history's darkest chapters should not be forgotten so easily.
As the Trump impeachment trial plays out in the Senate, the 100 lawmakers there are required by law to abide by a special oath.
Russia's cabinet resigned Wednesday, and it looked like an unexpected move. But a Russia scholar says it is part of a plan by leader Vladimir Putin to maintain power after he leaves office.
An expert on Watergate says that today's House Republicans have taken precisely the opposite position than the GOP took in 1974 on the president's power to withhold documents from Congress.
Scholars explain important moments in the Democratic presidential debate on Dec. 19.
In the Trump era, one crisis – even one as grave as impeachment – is simply replaced by another. In more tranquil times such crises may spell the end of a presidency – but not so in the age of Trump.
The impeachment vote is the latest, and most extreme, example of a power struggle between the executive branch and Congress that has existed since George Washington was president.
Democrats blasted Senate leader Mitch McConnell for saying the GOP would run an impeachment trial as President Trump wished. But senators are not held to a juror's neutrality standard during a trial.
Public officials are now in the spotlight: Does the public view them as professionals, bound by duty, or as elites who invoke ideals while pursuing their own agendas?
When the founders wrote the Constitution, they had to devise a punishment fitting for a civil servant's impeachment. One possible punishment: banishment from the community.
Teachers grappling with how to teach current events at divisive times should emphasize history, study original sources and address polarization.
President Donald Trump and his supporters exhibit the methods of science deniers. Like anti-evolutionists and flat-earthers, they reject what they don't want to believe and accept what they favor.
The history of the Latin phrase at the centre of the impeachment investigation into Donald Trump.