Shouting over the banging and clanging sounds from heavy construction equipment, President Donald Trump on Tuesday gave a group of reporters a closer look at the construction for the White House ballroom he's building on the site of the former East Wing to mount a defense for the project that has hit a speed bump in Congress.

Donald Trump made a strange claim about the secure “drone-proof” roof of his White House ballroom project.

He highlighted the security aspects of the building, notably its “dead flat” roof made of “very strong steel" and said it is “drone-proof” because "if a drone hits it, it bounces off, it won’t have an...