What is Trump’s ballroom obsession really about?

In the past week Donald Trump’s obsession with building his grand ballroom has reared its head again. He was even talking about it after the suspected third attempt on his life.  The US president has torn down parts of the East Wing of the White House to make way for the huge structure that will dominate the White House.  Today, Dan Diamond, White House reporter at the Washington Post on legal efforts to stop the president and what Trump’s motive really is.  Featured:  Dan Diamond, Washington Post White House reporter