Yes this link was not what I initially expected. My first thought was that Plaid Cymru was expanding to the whole of the UK, not just Wales.
https://en.m.wikipedia.org/wiki/T._P._O%27Connor
In that case, the objective was to argue for home rule for Ireland. And to look out for the large Irish community in Liverpool.
Joking aside, I also read the title as referring to Plaid Cymru and was very confused.