Eccles was selected as a
prospective parliamentary candidate for the Labour Party in the constituency of
Stourbridge, a then
safe seat for the
Conservative Party, in December 2023. She is the chair of the
APPG on Visual Arts and Artists. In Parliament, Eccles made a number of interventions in support of the
Terminally Ill Adults (End of Life) Bill, which would legalise assisted dying in England and Wales. In the second reading of the Bill, Eccles objected to the use of language describing assisted dying as assisted suicide, attempting unsuccessfully to raise a point of order in Parliament over Conservative MP
Danny Kruger's use of this term, which she considered "offensive". Eccles attracted criticism for visiting Israel in June 2025, as part of a trip organised by
Labour Friends of Israel. She has said that having autism inhibits her ability to understand what she has called "arcane" and "pretend rules" that operate in Parliament. ==References==