Is a trial of impeachment held with or without a jury? How about treaties? And murder?
Forget about the treaties part.
An impeachment trial is held by the legislature -- therefore without a jury. However, the legislators could be considered a jury of the president's peers.
http://en.wikipedia.org/wiki/Impeachment_in_the_United_States
I believe that murder trials must have a jury.
A trial of impeachment, the review of treaties, and murder trials are handled differently in terms of juries:
1. Impeachment Trial: Impeachment trials are conducted without a jury. The U.S. Constitution states that the Senate has the "sole Power to try all Impeachments." Therefore, in cases of impeachment, the trial is held before the Senate, acting as both judge and jury. The senators listen to the evidence and ultimately vote to convict or acquit the impeached individual.
2. Treaty Review: Treaties, on the other hand, do not go through a traditional trial process. The Constitution grants the power to make treaties to the President, with the advice and consent of the Senate. While there is no jury involved, the Senate plays a critical role by acting as a reviewing body for treaties. The Senate examines the terms of the treaty, discusses it, and votes on whether to ratify or reject it.
3. Murder Trial: Murder trials, like most criminal trials, typically involve a jury in the United States. During a murder trial, a jury of peers is selected through a process called voir dire. The jury listens to the evidence, examines witnesses, and ultimately deliberates to determine whether the accused person is guilty or not guilty of murder, based on the standards of the legal system.
To summarize, impeachment trials do not involve a jury, treaty review involves the Senate but not a jury, and murder trials usually include a jury.