Maybe, you know, look at the stock market to see if that's true, instead of just believing Trump's tweets about it...
Usually whoever keeps the economy going and doesn't harm it in anyway gets re-elected for a second term.
Since his inauguration, the S&P500 is up 27.37%. At this point during Obama's first term, the S&P500 was up 65.19%. Apples and oranges, true. Let's look at the preceding 46 months before Trump's inauguration. Over that time, the market rose 26.69%.
Anyone pretending the market under Trump is anything but "normal" is participating in partisan hackery. Don't do it.