He told everyone what he was going to do. A lot of people thought he was a lying politician who lies, and therefore these were all lies. Or, at best, jokes or exaggerations.
And now, 4 months into a 4 year term, he's doing it all. Who knew?
So when he jokes that he can do whatever he wants, including run for a third term, learn from the past: it isn't a joke, even if he's chuckling; it isn't an exaggeration; it's not a lie. It's real, it's the plan. Decide how you feel about it.
I'm not criticising anyone or anything here, I'm just stating facts. It's sad to me that so many people think this is all coming as some sort of huge surprise.
You know who also told everyone what he was going to do? And about whom everyone said "nah he's not really that crazy, he's just pretending for his supporters". Hitler. Also just stating facts.