Original sentence: On 12th September 2015 he resigned as shadow Health Minister following the election of Jeremy Corbyn as leader of the Labour party while Corbyn was still giving his acceptance speech
Edited sentence: Jamie then joined the Conservative Party as he had exposed himself as a Tory fifth columnist.On 12th September 2015 he resigned as shadow Health Minister following the election of Jeremy Corbyn as leader of the Labour party while Corbyn was still giving his acceptance speech but nobody noticed or cared