Orr holds what Labour has described as “extreme” views, opposing abortion in all cases and describing asylum seekers as “invaders”.
Opposition parties, including Labour, the Liberal Democrats, and the Green Party, have condemned Reform UK, accusing it of importing “divisive and dangerous ideas” from US politics.
Reform UK has denied that Orr's appointment signifies a shift towards an anti-abortion stance for the party, stating he joined to attract elite talent.
Orr, though not widely known publicly, has been influential in the philosophy of the Trump administration and was described by Reform's head of policy as a “brilliant academic”.