Stratton moved to her Cop26 role after the planned Downing Street briefings were axed. A former journalist for the Guardian, BBC and ITV, Stratton also worked for the chancellor, Rishi Sunak, before switching to No 10.
Earlier Downing Street said Stratton and another No 10 aide, Ed Oldfield, who was named in the video, had not been suspended. Oldfield has not offered any comment since the videos emerged.
A number of senior journalists and former colleagues of Stratton said she was being scapegoated for a party which, during the video, she said she had not even attended.
