Final answer:
A bill may begin in either the House or the Senate, but bills raising revenue must originate in the House. Once passed by both chambers, it goes to the president. Vetoed bills can become law with a two-thirds congressional override.
Step-by-step explanation:
The best explanation for how a bill becomes a law in Arizona, based on the chart described, would be that a bill may begin in either the House or the Senate. However, there are specific instances where this differs, such as with bills that raise revenue, like tax bills, which must originate in the House of Representatives according to the Constitution. Once a bill has been approved by both chambers, it is sent to the president for signature. If the president signs it, the bill becomes law. If the president vetoes it, Congress can override the veto with a two-thirds majority vote in both houses. During this process, both chambers may introduce amendments to the bill, and if there are differences between their versions, a conference committee may negotiate a compromised bill that both chambers can accept without further amendment.
Moreover, the process to override a governor's veto involves a supermajority vote in the state legislature, which can lead to negotiations with the governor prior to the passage of the bill. The legislative process can be complex and bills can die at various stages, such as in committee or due to lack of consensus between the two chambers.