Former Fox News commentator K.T. McFarland has been asked to step down as Donald Trump's Deputy National Security Adviser, Bloomberg reports. She will reportedly be offered a new post, as ambassador to Singapore. Here's what you need to know:

• National Security Adviser H.R. McMaster is being given the opportunity to bring in his own team.
• This comes days after Steve Bannon was removed from the National Security Council.
• Nat Sec shakeup following Mike Flynn's resignation continues.