Question: Who is in charge if president is impeached?
Answer: vice president
Disambiguated annotations:
qaPairs: question: Who is in charge of the  Senate trial if the US president is impeached?
answer: Chief Justice
question: Who is in charge of deciding whether to remove the US president if the president is impeached?
answer: Senate
question: What says who is in charge if the president is impeached and removed?
answer: United States presidential line of succession