How much is Donald Trump really worth?

Trump has consistently said it's in the billions. A 2005 book citing anonymous sources said it was between $150m-$250m. Trump sued the writer for defamation. He alleged damage to his reputation that caused him to lose out on future deals in locales from Philadelphia to Kiev.

A hearing in that case will take place Monday in a state court in Camden, NJ As part of the proceedings Trump has provided under oath the secrets to how he values his wealth and treasure. In one case, he says, he does 'mental projections.'

'My net worth fluctuates, and it goes up and down with markets and with attitudes and with feelings, even my own feeling,' he told lawyers in the December 2007 deposition.

Wall Street Journal