False. The Chief Justice must preside over only impeachments of a President. Article I, Section 3, Clause 6 states in part:
"When the President of the United States is tried, the chief justice shall preside..."
Since the US Constitution fails to mention any other impeachment trials, the Senate has adopted rules that provide the Presiding Officer of the Senate (whether the Vice President, President pro tempore or other presiding officer designated by the Senate) shall preside in impeachment trials of other officials. In addition, in some instances, the Senate creates an impeachment trial committee to take evidence and to then report such evidence to the full Senate for its deliberation and vote.
The vice-president of the US normally presides over the senate, including impeachment trials. In the special case that the president is impeached, the Chief Justice of the US presides over the trial.
If the President is the one impeached, the Chief Justice of the Supreme Court presides over the trial.
The Chief Justice of the United States presides over the Senate trial, when the President has been impeached. If the president is convicted and removed from office, the vice-president would become President.
As President of the Senate, the U.S. Vice President presides over most impeachment trials. However, Article I, Section 3, Clause 6 of the U.S. Constitution specifies that when the President is on trial the Chief Justice of the Supreme Court presides. And although the Constitution doesn't say, I assume that would also be the case if the Vice President were the defendant in an impeachment trial (an incumbent U.S. Vice President has never been impeached to date).
judicial, executive
US Senate
Under current Senate rules, the Chief Justice of the US Supreme Court presides over any impeachment trials.
As prescribed by the United States Constitution, the Chief Justice of the United States Supreme Court presides over the Senate an impeachment trial of an American President.
chief justice
This is the person better known as the Chief Justice. The Chief Justice is the leader of the court (the other justices are known as Associate Justices); the Chief Justice presides over hearings and sets the agenda for the business conducted by the Supreme Court. If there were an impeachment, the Chief Justice would preside over the trial in the Senate. The current Supreme Court Chief Justice is John Roberts.
He has no role unless he is the one who is impeached. In this case, he stands trial in the Senate and presumably would be called to testify, if he wants to. He would be able to mount a defense.
The president would be tried by the senate, and the chief justice of the supreme court would be the judge.