Seymour is the Epsom electorate MP and leader of the ACT party.
Originally from Palmerston North, he grew up in Whangarei andhas previously worked in public policy both in Canada and in New Zealand.
He is a supporter of the legalisation of assisted dying and says people have the right to live and die as they please, as long as they're not harming anyone.
He was offered a promotion from Under-Secretary to Minister by John Key but refused in order to continue promoting the End of Life Choice Bill, as Ministers cannot enter Private Members' Bills.
Seymour first stood for ACT in 2005 against Helen Clark in the Mt Albert electorate.