Tom Barrack speaks at the Republican National Convention in Cleveland, Ohio, on July 21, 2016.

One of President Donald Trump's closest friends and confidants took advantage of the Great Recession to build an unprecedented real estate business that makes him tantamount to a modern-day slumlord buying up homes, bumping up rents and allowing the properties to fall into disrepair. Southern California billionaire Thomas J. Barrack is the mastermind behind the […]