Sean Rees was the press officer for the Llanelli Branch of Plaid Cymru. In the run up to the General Election of 2017 he was replaced as the prospective MP candidate for Llanelli by Mari Arthur.
Numerous accusations flew around on social media but as yet neither Plaid Cymru's central office nor the local Plaid Cymru branch appear to have got to the bottom of what actually happened.
Subsequently a large number of local branch members were suspended.
They were joined by Cardiff AM...