President Trump’s incoming national security adviser, John Bolton, is expected to oust dozens of White House officials perceived to be disloyal to the president from the National Security Council, Foreign Policy reports. Citing multiple sources, the report says Bolton’s “house cleaning” will also target holdovers from President Obama’s administration, allies of outgoing national security adviser H.R. McMaster, and those suspected of leaking to the press. “Everyone who was there during Obama years should start packing their shit,” one source was quoted as saying. Bolton is reportedly already being urged by his advisers to fire Nadia Schadlow, the deputy national security adviser for strategy who authored the recently released National Security Strategy. That document was widely seen as upholding traditional U.S. foreign policy stances, while Bolton is known to have ultra-hawkish views. McMaster’s deputy, Ricky Waddell, is also thought to be in Bolton’s sights.