The senior Pentagon policy official who certified security aid to Ukraine has been asked to resign

A senior Pentagon policy official was asked to resign after losing the support of top national-security leadership, CNN first reported on Wednesday morning.

John Rood, the undersecretary of defense for policy since 2018, will step down at the end of this month, the Pentagon said in a statement, confirming the earlier reporting.

Administration officials told Bloomberg that senior national-security officials had lost confidence in Rood's ability to execute President Donald Trump's agenda. Sources told Foreign Policy that he was asked to resign after Trump lost confidence in him following a string of departures of senior Pentagon policymakers.

In a tweet on Wednesday morning following reports of Rood's resignation, the president wished Rood well and thanked him for his service. Rood's resignation letter, a copy of which was obtained by NBC, reveals that Trump requested his resignation.