The resignation came over fears he was vulnerable to blackmail by Russia

Trump national security adviser Michael Flynn resigns

Shalabh Kumar, a Trump aide who also donated to him over $1 million, said Trump's administration will foster constructive ties in South Asia

Donald Trump knows who is America's 'true friend' in South Asia: Trump aide

Haley becomes the first woman and minority to join Trump's administration and would replace Samantha Power

Nikki Haley accepts Trump offer to be US ambassador to UN: Reports

Haley becomes the first woman tapped by Trump for a top-level administration post during his transition to the White House

Nikki Haley named US ambassador to United Nations

'Dick Cheney. Darth Vader. Satan. That's power,' he told the Hollywood Reporter in an interview?

For Trump chief strategist Bannon, 'darkness is good'

Representative Mike Pompeo has also defended the CIA's use of interrogation techniques that are widely condemned as torture

Trump's CIA pick supports domestic surveillance, opposes Iran deal

This is a second shot for Flynn who thinks he was fired from the DIA in 2014 for telling hard truths about the war on Islamist extremism

Fired US Army General Michael Flynn hired as Trump's national security adviser