Yes. He could his keep his office, but a trial would interfere with his doing his duties. His legal team probably delay any trial for a long time.
The only way a President can be removed from office is via the impeachment process specified in the Constitution.
There are not any duties of the President that are shared by the Vice President and the President can not perform any of the Vice President's two duties.
vice president
The 25th amendment provides for succession in the event a president dies, is unable to fulfill his duties due to a physical or mental disability.
25
The 25th Amendment
The duties the president perform as chief executive are to decide how laws of the United states are to be enforced and choose officials and advisors to help run the Executive Branch.
The 25th Amendment
In this case the vice president would assume the duties of the president temporarily.
write thema letter
The Vice President will take over for the President if the latter is hurt or cannot perform the duties of the office.
Then the vice president-elect becomes president.
According the Amendment 25, if the President is unable to perform his duties, he must so inform in writing the President pro tempore of the Senate and the Speaker of the House of Representatives.