Conservative MSP Graham Simpson has defected to Reform.
Simpson announced his move as he appeared at a press conference in Scotland with Reform leader Nigel Farage.
Simpson told journalists at a conference in Broxburn, West Lothian, that many would not be surprised to see him defect, and that leaving the Conservatives was “an enormous wrench”.
He is the second MSP to leave the party’s Holyrood group in the past week.
Simpson becomes Reform’s sole current MSP.
Michelle Ballantyne sat as a Reform member at the Scottish Parliament from January to May 2021, having left the Conservatives the previous year and sitting for a short spell as an independent.
She lost her seat at the May 2021 election.