Cummins was born on 26 June 1967 and was educated at Ruskin College and the University of Leeds, attending college as a mature student on a Trade Union scholarship.
She is married to Mark Cummins, whom she employs as a Parliamentary researcher.[2] She has two children.[3]
Cummins was elected to the House of Commons to represent Bradford South on 7 May 2015, increasing the Labour candidate's majority in the constituency from 4,622 to 6,450 votes.
Cummins served as an opposition whip from September 2015 until January 2018, when she became a Shadow International Trade Minister. She departed the front bench in April 2020.
^"Leeds East". ukpollingreport.co.uk. Anthony Wells. Retrieved 16 April 2020.
^Carr, Tim, Dale, Iain and Waller, Robert, eds. (25 June 2015) The Politicos Guide to the New House of Commons 2015. Biteback Publishing. ISBN1849549230