Should citizens be allowed to overturn government mandates? Why or why not

Yes, citizens should definitely be allowed to overturn government mandates. The reason is that political authority, according to most contemporary political theories, are based on the idea of the social contract and the consent of the governed.

These two ideas state that governments derive their power from mutual agreement with the citizens they rule, and that as result, it is citizens who have ultimate sovereignty, and this gives them the right to overthrow a government or oppose its mandates.

this is false

richard nixon was the 37th president of the united state and didn't serve as a vice president for any president before him