The MP for Brighton Kemptown and Peacehaven has stepped down from Labour's front bench.
Lloyd Russell-Moyle said a "campaign by the right-wing media" has made his position as Minister for the Natural Environment "untenable".
In a tweet he wrote that after speaking with Labour leader Keir Starmer, he'll return to the back benches for the time being.
He added: "I am here to represent all my constituents and I am grateful to all those who voted for me, and to the people who believe Labour can make our country a fair, better, happier place for all of us. I shall continue to work hard for you."