Bills originate in congressional committees and go from there to the full House of Representatives or Senate. If both houses pass the bill, the legislation normally must go to a Conference Committee to resolve differences between the two versions. The compromise version then goes from the Conference Committee back to both houses, and if passed by both, to the President. If the President signs the bill, it becomes a statute;

if he vetoes it, Congress can pass it over his veto with a two-thirds majority in each house.