Donald Trump is the current president
Yes he is and I love what he's doing in USA. 
He used to be a businessman and a TV personality
I know he's a huge business man, never knew he's a TV personality . What more do you know about him 
He grew up in New York. He also wen to Pennsylvania for school.
What kind of business does he do
Television and real estate I believe. He is quite the personality on TV.
Wow.  When was elected as US President?
Donald Trump
Donald John Trump (born June 14, 1946) is the 45th and current president of the United States. Before entering politics, he was a businessman and television personality.
Trump was born and raised in the New York City borough of Queens, and received an economics degree from the Wharton School. He took charge of his family's real estate business in 1971, renamed it "The Trump Organization", and expanded it from Queens and Brooklyn into Manhattan. The company built or renovated skyscrapers, hotels
women." She endorsed Austin Petersen for president in May 2016.
But in March 2018, she told reporter Nicholas Ballasy that President Donald Trump is "a great overall president, like, he did what he said he was going to do and he is doing things he never imagined he would have to, so that's really hard to do with a staff that was not quite seasoned – it's just sheer force of will and force of personality. I think he's doing great. He's doing really great