National security adviser H.R. McMaster has become the latest target of the leaks and infighting that have dogged the Trump administration’s early days.

President Trump has tried to put an end to White House staffers placing palace intrigue stories, which peaked last month with a war of words between chief strategist Stephen Bannon and senior adviser Jared Kushner that played out in the press.

Now, McMaster, a favorite of Washington’s GOP and foreign policy establishment, finds himself in the crosshairs of anonymous White House officials as the administration mulls ramping up the U.S. military presence in Afghanistan.

Those close to the White House describe the latest scuffle as another power struggle between rival spheres of influence. Foreign policy experts see the leaks as a reflection of a broader internal dispute over the appropriate level of U.S. involvement in the Middle East.

Once again, Bannon is rumored to be at the center of it.