On 14 September 2015, Jones resigned from the front benches of Labour, following the election of Jeremy Corbyn in the leadership contest. He said he could not serve under Mr Corbyn as he was from the "extreme left", and did not hold Labour's "true values". Jones was critical of Corbyn's policies on welfare, the economy and immigration, and believed Labour in opposition must be "more fiscally responsible". He supported Owen Smith in the failed attempt to replace Jeremy Corbyn in the 2016 leadership election.
