[1] Blayney became a member of the Western Australian Legislative Assembly at the 2008 state election, representing Geraldton.
Blayney was comfortably re-elected in 2013, but faced a closer-than-expected contest in 2017 against Labor candidate Lara Dalton.
The move came after he lost his post as shadow agriculture minister in a reshuffle, but Blayney claimed it had "not greatly" affected his thinking.
[4] Dalton sought a rematch with Blayney at the 2021 election, and handily defeated him, amid Labor's decisive victory that year.
[citation needed] Blayney stood unsuccessfully for the House of Representatives at the 2022 federal election, losing to the incumbent Liberal MP Melissa Price in the seat of Durack.