Mark has been an exemplary public servant and will leave a lasting legacy as a result of his absolute dedication to social justice and the welfare of people of Wales.
I have had the privilege of working closely with him and witnessed his extraordinary work commitment and thoughtful approach to politics.
His moral leadership of Wales during COVID will forever be contrasted with the moral bankruptcy of the leadership of the UK government at the same time.
I know the personal trauma that Mark suffered with the sudden loss of his wife Clare and have been deeply moved by his determination to continue to serve the people of Wales and to deliver the commitments promised in the Welsh Labour manifesto.
Typically he has done exactly what he promised and is standing down as First Minster to allow a successor sufficient time to prepare for future elections.
I look forward to continuing to work with Mark as my Senedd colleague for Cardiff West and to enjoy his company as a true friend.