Did some digging on Expulsion - Expulsion is the most serious form of disciplinary action that can be taken against a Member of Congress. Article I, Section 5 of the United States Constitution provides that "Each House [of Congress] may determine the Rules of its proceedings, punish its members for disorderly behavior, and, with the concurrence of two-thirds, expel a member." The processes for expulsion differ somewhat between the House of Representatives and the Senate.[1]
Censure, a less severe form of disciplinary action, is an official sanction of a member that does not remove a member from office.
In the entire history of the United States Congress, 20 Members have been expelled: 15 from the Senate and 5 from the House of Representatives (of those, one member's expulsion, William K. Sebastian of Arkansas, was posthumously reversed). Censure has been a much more common form of disciplinary action in Congress over the years, as it requires a much lower threshold of votes to impose.
The great majority of those expelled — 17 members — were removed from office for their support of the Confederacy in the immediate aftermath of secession.[2]
In 1861, after the Civil War had broken out, eleven Senators (including former Vice President and Kentucky Senator John C. Breckinridge) and three Representatives were expelled for supporting the Confederacy.
In 1862, three more Representatives were expelled for supporting the Confederate States: John Bullock Clark and John William Reid of Missouri, and Henry Cornelius Burnett of Kentucky.
There have only been three other expulsions:
In 1797, Senator William Blount of Tennessee was expelled for treason, with charges centering on a plan to incite the Creek and Cherokee to aid the British in conquering the Spanish territory of West Florida. Blount remains the only Senator to be expelled for a reason other than supporting the Confederacy.
In 1980 Representative Michael Myers of Pennsylvania was expelled for bribes in connection with the Abscam scandal.
In 2002, Representative Jim Traficant of Ohio was expelled after he was convicted on numerous counts of bribery, racketeering, and tax evasion.
Funny thing, with the exception of I think one person, every single one was a democrat. Let that sink in. Some were expelled for joining the confederate side and were democrats. Imagine that.
Also of note, Abscam - Abscam—sometimes written ABSCAM—was a Federal Bureau of Investigation (FBI) sting operation in the late 1970s and early 1980s that led to the convictions of seven members of the United States Congress, among others.[1] The two-year investigation initially targeted trafficking in stolen property and corruption of prestigious businessmen, but was later converted to a public corruption investigation. The FBI, aided by the Justice Department and a convicted con-man, videotaped politicians accepting bribes from a fraudulent Arabian company in return for various political favors.[2]
More than 30 political figures were investigated and among those, six members of the United States House of Representatives and one United States senator were convicted.[3] Not only were members of Congress convicted, but also one member of the New Jersey State Senate, members of the Philadelphia City Council, the Mayor of Camden, New Jersey, and an inspector for the United States Immigration and Naturalization Service. In all, 10 Democrats and 1 Republican were convicted.
https://en.wikipedia.org/wiki/Abscam
https://en.wikipedia.org/wiki/Expulsion_from_the_United_States_Congress