That must be so hard to live with. According to my brother, Biden will be dead in a month (or a month into his presidency) to be replaced by Karmela - all in some plan to have the first female and black president. He and my other brother have plenty of time to trawl the internet. However, no one has to trust our governments if they don't want to and are free (certainly in this country) to have and voice their suspicions. Thanks to the www, they lap up all sorts of theories about the Clintons, the Obamas, the Blairs, etc. Seemingly the master plan is to have only 'elite' people in the world ultimately and get rid of nearly everyone else through various means and/or ensure that the masses live in ignorance. And many more theories I could mention. It is distressing for the listener, while the spouter seems to revel in it. How does the possible 'grain of truth' turn into a mountain of madness? No, I don't think it's a mental illness at all, but as others have said, a reaction to extraordinary events and changes, a baulking against people in power and their motives (don't we all do that at times?) and possibly also a reaction to difficult events in their own lives. When my f-i-l developed dementia, he thought the government was responsible for his topsy turvy days and nights. We agreed with him, but that's quite different. Perhaps your husband needs a hobby or something to take his mind off things. A good laugh might help if you can find one. Or you could put a time limit on his rantings, and agree on just 10 or 15 minutes per day and no more. You have my sympathy.