Trump: 'I Never Went Bankrupt'

Both Donald Trump and his daughter Ivanka, the executive vice president of Development & Acquisitions for the Trump Organization, said the Old Post Office could become one of the best hotels in the world.

"Washington doesn't have that right now and they have nice hotels but we think this could be one of the really great hotels of the world," Trump said.

"We'll be bringing a general life to the area. This building will be incredibly vibrant. Plus obviously with observation deck, it's of the great jewels of D.C. that's really underutilized," said Ivanka, a Georgetown University graduate.

The Apprentice star also said he has "rarely met people more professional" than those at GSA.

"These people are as good as anybody that I've ever dealt with and I don't say that even in a positive standpoint because they negotiate a very tough deal," he said.