It’s possible. A leader’s personality has a lot to do with the direction of the country. Some of it is cause, some it effect. Regans promotion of bigotry and corruption for the sake of corporate profit has had a lasting effect on the country. Bush 1s zealotry, has a lot to do with incarceration rates. Clinton’s understated racism and sexism was a nice unifying model for white people to follow for twenty years. Bush.. well.. we’re still in his wars, we continue to pay gobs of money into asymmetric warfare, while he’s off painting, and we’re basically committed to having a military role in the Middle East until they kick us out, though for political reasons we swapped US troop casualties for civilian ones.
Obama did something. It’s hard to tell right now, given temporal proximity.
I could speculate about the state of the country today, but it would be too colored by my biases and my perspective. That said, I do see a widespread adoption of Trumps rhetorical style among Republicans. Whether that will become the new normal, or if the bums will all be thrown on their asses is hard to say right now.