She was a vocal critic of former Labour leader Jeremy Corbyn and supported Owen Smith in the failed attempt to replace him in the 2016 leadership election.

[3] Creasy's mother described her own parents as "very aristocratic" and herself as "enormously privileged", which contributed to Corinna Martin's decision to join the Labour Party.

[7] Creasy was deputy director of the Involve think tank and worked as a researcher and speech writer for various Labour government ministers, including Douglas Alexander, Charles Clarke and Ross Cranston.

[28][29] She stated she was prepared to work with any of the candidates for the party leadership, including Jeremy Corbyn, saying, "that process of rebuilding isn’t about any one person it's about all of us.

[45] In November 2024, Creasy voted in favour of the Terminally Ill Adults (End of Life) Bill, which proposes to legalise assisted suicide.

She highlighted that the average cost of credit charged to these customers was 272% APR, as in the rest of Europe, and that there was a fourfold increase in payday loans since the start of the recession in 2008, which led to cross-party parliamentary support for a cap.

[47] Creasy also highlighted in a speech to the House of Commons the lack of competition in the market, leading to Government support for a cap of loans which exploit the poor, which in some cases reached 4000% APR.

[51] Wonga made an "immediate and unreserved apology" following these malicious attacks, and Creasy also managed to get the firm to promote one of her constituency events in aid of struggling families.

In answer to a question from Bottomley in the Commons on 29 June 2017, Philip Hammond, Chancellor of the Exchequer, said the government would support free abortions on the mainland for Northern Irish women.

[53][54] Earlier in June, a Supreme Court ruling upheld the legal basis for a charge of £900 for women from the province seeking an abortion on the mainland, whereas other necessary treatments on the NHS would have been free.

[2] On 2 September 2014 at the City of London Magistrates' Court, Peter Nunn was found guilty of sending menacing messages to Creasy,[60] and was subsequently jailed for eighteen weeks.

[61] Creasy wrote in an article published on 27 July: "Twitter tell me we should simply block those who 'offend us', as though a rape threat is matter of bad manners, not criminal behaviour.

"[62] She appeared on Newsnight on 30 July 2013 with Toby Young, the Conservative commentator, over the validity of addressing harassment on the social networking site.

[66] Creasy allegedly received threats via social media following her vote for extending UK military action against ISIS to Syria after the parliamentary debate on 2 December 2015.

The Times reported that the man had contacted Waltham Forest Council to complain that the MP's "extreme views" would damage her children and they should be removed from her care.