Power ultimately comes from the people. From T.L. Davis at tldavis.substack.com:

If people recognize themselves as the rightful repositories of power, even in a dictatorship, they must now be coming to the conclusion that it’s time to use that power to rectify the situation in America and other freedom-loving nations.
All governments are the recipients of temporary power lasting only so long as the people grant it to them. That doesn’t change with monarchy, communism, democracy or a republic. While some offer easier or harder paths to exerting that inherent power by confusing it with corruption or physically preventing it with oppression, no government can survive a popular rebellion. When all of their antics are seen as criminal, they cannot rule.
This is the concept most missing in America, today. One side believes that if the other side can be beaten, freedom and justice will prevail. It won’t. No side is more corrupt than the other, but it does create a buffer zone within which the worst of oppression can occur. With one side constantly blaming the other for what they are doing themselves and that exchanging one for another only enrages one side and pleases another, even though the same oppression is being meted out by their favorites. At least it’s not the others meting it out.