So, as I've found this useful, decided to run the known candidates, in no particular order, for #aras18 through a search. Used dates May 20th - May 31st, the time when you'd most expect tweets about #repealthe8th.
One post about #8thref - encouraging people to vote whatever their opinion. Very active tweeting, mostly about various community/charity/business events.
One tweet about #8thref - a few days later hoping both sides come together to stop unwanted pregnancies. Says he'd welcome Trump to Ireland. Moderate tweeting, mostly replies.