London (CNN)Amid the UK's grave second wave of Covid-19 and its final act of Brexit, British Prime Minister Boris Johnson's chief adviser, Dominic Cummings, has resigned, a source at Downing Street told CNN on Friday.
UK PM's chief adviser Dominic Cummings resigns, says source
Pictures showed Cummings carrying a box as he left the Prime Minister's office at 10 Downing Street on Friday.
The PM's special adviser had been rumored to be leaving his post before Christmas in another sign of tumult within the UK's Conservative government. Cummings, a divisive figure, has often been painted as the mastermind behind the Brexit campaign and Johnson's rise to the premiership.