Deputy Chief Minister Yvette Berry has been censured in the Legislative Assembly, with the Liberals and Greens uniting to condemn the minister over her handling of the public school system at the same time teachers go on strike.
But independent Leanne Castley, who quit the Liberal party last week, broke with her former colleagues and backed Ms Berry, calling on the opposition to build its credibility rather than using motions that would "lose their edge".
Opposition Leader Mark Parton said the Liberals were standing up for their values in seeking to censure Ms Berry, but these values "meant different things to different people".