I don't think Trump is the whale behind all the crypto market manipulation, especially for BTC price.
What about those traders that come up and short and go long on BTC right before he starts posting crap on social media?

Trump led the bull run on everything, not just crypto but also the stock market because he promised he would drop the rates to zero, now that his plan was obviously bs, his tariffs threaten economic growth and trade and are bringing back inflation of course we're sliding down no matter what good news we have otherwise.
The growth forecast is down, we didn't have the fed cut, inflation is expected to go up, and smart people are causing ut their stock sand staking cash, so, if somebody doesn't manage to stop him from this nonsense things will go worse before getting even worse and worse.