the reason why musk bought Twitter

Personally, I think he stumbled into this one. I think he bought Twitter because

• He likes shitposting
• He was mostly pumping and dumping the stock, as he's done several times before
• He accidentally got himself legally obligated
• He was enamored with his idea of the "everything" app that was going to do your banking, shopping, etc.
• He wanted to use "x.com" for something.

I influence over elections came well after he owned it, and wasn't his idea. I think that part was fed to him. He did have a bit of a warped idea of what "free speech" was, but someone helped him either warp it more or ignore it to fit the election narratives needed.