The Senate passed the Equal Rights Amendment 91-9, but an insufficient number of state legislatures subsequently ratified it.
Sen. Rand Paul's motion to hold that the Senate cannot try an impeached official who is no longer in office was defeated 55-45. Most legal scholars agree such a trial is permissible.
On December 19th, 1998, the House of Representatives passed House Resolution 611, referred President Bill Clinton to the Senate for impeachment prosecution on charges of perjury and obstruction of justice
The House impeached President Donald J. Trump for a second time, an unprecedented feat in U.S. history, on charges of fomenting insurrection
The Senate voted to acquit former President Trump of charges of inciting the January 6th attack on congress. Although Senate Minority Leader Mitch McConnell expressed that Trump was legally culpable for a "disgraceful dereliction of duty", he concluded that the Senate is unable to convict former officials. The Senate had previously held it has the power to do so.