A bill can originate from Congress, the President, or citizens. It is introduced by a Representative or Senator and assigned to a committee related to the bill's issue. The committee members consider input from citizens and lobbyists, and can vote to pass the bill to the full House or Senate, table it, or kill it. If passed, the bill moves to debates and votes in both houses, and may be amended, passed to the other house, or killed. If changed, a conference committee reconciles the versions before final votes in each house. If passed, the bill goes to the President to be signed into law or vetoed, though Congress can override a veto.