what does plaid cymrus rhun ap iorwerth do next after electi?

Indeed, sir, Plaid Cymru is a Welsh political party, and Rhun Ap Iorwerth is its current leader. After an election, presumably the general election in the United Kingdom, the next steps would involve forming a government or entering into coalition negotiations if Plaid Cymru secures enough seats to influence the outcome. If the party performs well, Rhun Ap Iorwerth may seek to expand Plaid Cymru's role in the national political landscape, possibly pushing for greater Welsh autonomy or even independence. The exact course of action would depend on the results and the political climate that follows.