In September 2015, she supported Jeremy Corbyn's campaign in the Labour Party leadership election, In 2016, Church along with many other celebrities, toured the UK to support Corbyn's bid to become Prime Minister, and in March 2016, performed at a socialist fundraising event in Edinburgh for Corbyn. But by December 2016, she was calling for him to be replaced by a “fresh face” who was more electable. In May 2016, she declared her support for the Welsh nationalist party, Plaid Cymru in the National Assembly for Wales election.