Donald Trump’s top official resigns one by one. Lisa Gordon Hazare, head of the US National Nuclear Security Administration (NNSA) and assistant minister for nuclear energy security, recently resigns.

A number of top White House campaign officials are stepping down due to the prospect of Trump losing the election and the deterioration of relations with him, CNN quoted White House sources as saying.

The U.S. Department of Energy announced in a press release on Friday that Lisa had resigned. It said Lisa Gordon submitted her resignation letter and it was executed shortly thereafter.

Meanwhile, William Bookless the company’s vice president has been named acting head. William Bookless has been the company’s vice president for the past year and a half.

A statement from the ministry following NNSA head Lisa’s resigns said that “she was responsible for modernizing the NNSA’s infrastructure and building a world-class workforce”.

She has also been instrumental in the administrative and management activities of the NNSA and in improving the quality of work of the 50,000 staff working in the organization.

The NNSA is a semi-autonomous organization operating under the US Department of Energy. It was founded in 2000. The agency is responsible for protecting the safety of US nuclear weapons.

In addition, they are responsible for the implementation of nuclear disarmament or NPT around the world.

In February 2018, the U.S. Senate finalized the appointment of Lisa Gordon Hazard. She was the first woman head of the organization. Earlier, Defense Secretary Mark Esper submitted his resignation over a dispute with President Donald Trump.

After the US presidential election, cabinet members resigned, paving the way for the president to form a new cabinet.

However, there was speculation that Esper could be fired by Trump after the election. In that case, Asper has already submitted his resignation letter.

Earlier, US Secretary of Defense Jim Mattis resigned over differences with President Trump.

In addition, many other senior US officials, including the former Secretary of State, have resigned or been fired. The number of ministers and top officials forced to resign or resign during the Trump administration is unprecedented in American history.