Senan Molony: Make no mistake, Mary Lou McDonald would be a serious contender for the Áras

Sinn Féin leader Mary Lou McDonaldMary Lou McDonald would be a serious challenger for Áras an Uachtaráin, if she does decide to throw her hat in the ring.The Sinn Féin president, a doughty Dubliner, has far more credibility than other Northern nationalists, such as Gerry Adams, Michelle O’Neill and, bizarrely, Colum Eastwood, former leader of the SDLP, who has indicated his availability to Fianna Fáil.