He is a big man, usually wearing a suit and a red baseball hat with TRUMP written on it. He is a super-rich New Yorker worth billions of dollars.
A person like him, or for example like Bill Gates is known as a "billionaire". I'm sure you know the English word, "millionaire", well this is one step farther. As far as money goes, Trump is at the top of the heap.
He is running for the presidency of the United States and right now, as an important step in the process, he is hoping to become the Republican party's candidate for the election in September of 2016.
Donald Trump is an outsider to the political world. He is a businessman, not a politician. He made his billions in real estate. He owns hotels, properties, apartments, condos, airlines, golf courses, bus companies etc. If you have been to New York City (my home town), then I'm sure you have visited Trump Tower on 5th Avenue.
Trump says what he wants. He speaks whatever is on his mind. Sometimes he says "outrageous" things (outrageous means in this case, politically incorrect, or obnoxious, alarming, incredible, not dignified). (V.C)
one step farther もう一段上
As far as money goes お金に関しては
at the top of the heap 頂上に登りつめた成功者
run for 〜 〜に立候補する
real estate 不動産
condos (condominiums) 分譲マンション
speak whatever is on one's mind 自分が思ってることは何でも話す
politically incorrect 政治的に言ってはいけないこと
not dignified 品のない