Homeland Security Secretary Kirstjen Nielsen is reportedly set to visit the U.S.-Mexico border today as outrage is growing over the deaths of the two migrant children. She came under renewed fire after releasing a statement Wednesday placing blame on Congress and “activist judges” for failing to “secure our borders.” On Thursday, California Senator Dianne Feinstein called for the Judiciary Committee to hold a hearing, a day after presumptive incoming House Speaker Nancy Pelosi called for investigations by Congress and the Department of Homeland Security.