Question: Who decides when where and how elections for senators and reps will be held?
Answer: States
Disambiguated annotations:
qaPairs: question: Who decides when elections for US Senators and US Representatives will be held?
answer: Congress
question: Who decides where elections for US Senators and US Representatives will be held?
answer: states
question: Who or what decides how elections for US Senators will be held (i.e. by direct election)?
answer: Seventeenth Amendment
question: Who decides where, when, and how elections for a state government's senators and representatives will be held?
answer: states
question: According to the US Constitution, who can legislate a method by which senators are elected?
answer: each state (and Congress