text: how dose a bill become a law? what is the process- it has to be approved by al three branches of government, the judicial branch decides if the law is constitutional, and the executive and legislative branch decide on it.  the legislative branch is first to judge it and if the majority of congress approves it it goes on to the pesident, which can approve ot veto it. if the president does veto it, it can still be passed if two-thirds of congress approves it