Now we're learning what it's like to work for Trump, from a woman who says she was a close business executive for 18 years.
Barbara A. Res is a former Trump vice president who says she oversaw construction of his crown jewel on Manhattan’s Fifth Avenue - Trump Tower.
"He told me he thought I was a killer. He said, 'Men are better than women, but a good woman is better than 10 men,''' she said.
Trump was the first person to arrive at his business and would often answer the phone until his staff arrived, she said.
On the campaign trail, the billionaire says he would be great for women, and often brings up Bill Clinton's past sex scandals.
“I don't think Bill Clinton is sexist, but definitely a womanizer. I would say Donald falls into that category,” Res said.
She wrote about her experiences in All Alone On The 68th Floor: How One Woman Changed The Face Of Construction.
IE told Trump when he returned to New York from the New Hampshire primary that Res declared him a great boss and tough to work for.
He replied: “That's very nice, give her my regards.”