How did the Trump Administration respond to concerns over security clearances? A House committee cites a whistle-blower who says the White House overrode concerns dozens of times. She also says they found ways to humiliate her. President Trump is threatening to close down the border with Mexico, and businesses there are worried. We'll look at the potential economic impact at the border and beyond. And Turkey is helping the United States develop the most expensive fighter jet in history but it also wants to buy a Russian defense system that can shoot them down. The Pentagon says no. Can they force Turkey to choose their firepower over Russia's?
