At the
2019 general election, Tarry was elected to Parliament as MP for
Ilford South with 65.6% of the vote and a majority of 24,101. Tarry was appointed to the
Transport Select Committee, on which he has been credited as being a "passionate advocate for public ownership". In this role, he called for introduction of a death in service payment scheme for London transport workers. He also joined the
Socialist Campaign Group of left-wing Labour MPs. Prior to his election in 2019 Tarry said "There are people associated with the Labour Party who have sought to exploit the issue [of antisemitism] just because they don't agree with Jeremy Corbyn over an issue of foreign policy". The
Jewish Labour Movement criticised this remark as underplaying the issue of
antisemitism in the Labour Party under Jeremy Corbyn. In response Tarry said that he was "clearly referring" to
Mike Gapes who held the seat prior to him. He further stated, "As someone who has worked with many interfaith groups and organisations, including
Searchlight and
Hope not Hate, specifically to fight antisemitism and racism, this is something I care deeply about and would never seek to downplay". During the
2020 Labour leadership election campaign Tarry said that
Keir Starmer would have to show how he would appeal to northern seats that had abandoned Labour, given that he was a "North London lawyer" and had opposed
Brexit. Tarry subsequently supported
Rebecca Long-Bailey in the leadership contest. From April 2020 until January 2021 Tarry was a
parliamentary private secretary to
Ed Miliband in the Shadow
Business, Energy and Industrial Strategy team, and as part of the parliamentary team of
Angela Rayner,
Deputy Leader of the Labour Party, when he was appointed to the role of
Shadow Minister for Buses and Local Transport. In summer 2022, Tarry was dismissed from his role as Shadow Minister for Buses and Local Transport for joining a rail strike picket line and advocating for inflation-matching pay rises. Labour stated he was sacked for unauthorised media appearances and "making up policy on the hoof". , 7 February 2024 Tarry said the
murder of Zara Aleena in July 2022 in Ilford was "incredibly shocking" and called on the local community to "all [pull] together". Tarry said the case was a "shameful failure" of the probation service. In July 2022 a trigger ballot was held in Ilford South to determine whether Tarry should face
deselection; Tarry lost the vote 57.5% to 42.5%. On 10 October 2022 a reselection vote was held, which Tarry lost to local council leader
Jas Athwal by 361 votes to 499. In April 2024 Tarry submitted a complaint about the vote saying discrepancies in the Labour membership list suggested tampering. Tarry has been an advocate for
drug checking at concerts and
harm reduction measures in festival settings. In 2023, Tarry's letter on the subject to then-
Home Secretary Suella Braverman was supported by
Fatboy Slim,
Billy Bragg and
Olugbenga Adelekan as well as 31 MPs. ==Personal life==