Written by attorneys · grounded in primary & secondary sources — see below
2 senses
1
historical
An archaic verb meaning to accuse or charge with misconduct. The term historically denoted formal accusations against public officials.
2
Sense 1
1
historical
An archaic verb meaning to accuse or charge with misconduct. The term historically denoted formal accusations against public officials.
Examples3
Independent Counsel Appointment Upheld
The Attorney General appoints an independent counsel to investigate Theodore Olson. Olson challenges the appointment as violating separation of powers. The Court upholds the statute because it does not impermissibly encroach on executive impeachment authority.
Sense 2
2
witness impeachment
A verb meaning to discredit the veracity of a witness or to challenge the accuracy of testimony or a document through contradiction or bias evidence.
Examples3
Deposition Contradicts Curator Testimony
Bridge Design calls curator Melanie to testify about an oral agreement with photographer Brandon. Melanie concedes uncertainty at trial. Bridge Design offers her prior deposition expressing certainty about the agreement. The deposition is admitted to contradict her trial testimony.
Settlement Offer Barred for Impeachment
Ismael Ibrahim offers to pay Ivan Ivanov $50,000 to settle a contract dispute. Ivanov rejects the offer. At trial Ivanov seeks to introduce the offer to show Ibrahim's inconsistent position on damages. The court excludes the evidence because it was made during compromise negotiations.
A verb meaning to discredit the veracity of a witness or to challenge the accuracy of testimony or a document through contradiction or bias evidence.
Each sense below has its own examples, sources, and questions.
Alexia Morrison, Independent Counsel v. Theodore B. Olson487 U.S. 654 (1988)
Sentencing Commission Structure Sustained
Congress creates the Sentencing Commission with members appointed by the President. Mistretta challenges the delegation as unconstitutional. The Court upholds the structure because it does not improperly transfer impeachment-related powers away from the political branches.
Mistretta v. United States488 U.S. 361 (1989)
Senate Impeachment Trial Procedure Valid
The Senate appoints a committee to take evidence in the impeachment trial of a federal judge. The judge challenges the procedure as violating the constitutional requirement of a Senate trial. The Court holds the procedure permissible because the Senate retains final authority over the impeachment process.
Nixon v. United States506 U.S. 224 (1993)
Frequently Asked1
Does the Constitution permit Congress to structure impeachment trials through committees?+
Yes. The Senate may use committees to gather evidence during impeachment trials. The full Senate retains authority to render the final judgment, satisfying the constitutional requirement of a Senate trial.
Bias Through Organizational Membership
Iris Irons testifies for Ideal Solutions in a contract suit. India Inoue seeks to cross-examine her about membership in a group whose tenets require members to favor fellow members in disputes. The court permits the inquiry because evidence of bias is always relevant to impeach a witness.
Frequently Asked4
May a party impeach its own witness with a prior inconsistent statement?+
Yes. Any party may attack the credibility of any witness it called. A party may introduce a contradictory deposition or other evidence to show inconsistency without first showing surprise or hostility.
When is evidence of a prior conviction admissible to impeach a witness?+
A conviction punishable by more than one year is admissible if its probative value is not substantially outweighed by prejudice in civil cases. Convictions involving dishonesty are admissible without balancing. Older convictions face stricter notice and balancing requirements.
Is evidence of religious beliefs admissible to impeach a witness?+
No. Evidence of religious beliefs or opinions is not admissible to attack credibility. Bias arising from organizational membership may be shown even if the organization's tenets are expressed in religious language, provided the inquiry focuses on the bias rather than the beliefs themselves.
What notice is required before using an ancient conviction for impeachment?+
Reasonable written notice of intent to use the conviction must be given so the adverse party has a fair opportunity to contest its use. Mere disclosure of the conviction's existence without signaling its intended use for impeachment is insufficient.
384 U.S. 436 (1966)Evidence
…never be used by the prosecution. In fact, statements merely intended to be exculpatory by the defendant are often used to impeach his testimony at trial or to demonstrate untruths in the statement given under interrogation and thus to prove guilt by implication. These statements are incriminating in any meaningful…