That said, such issues as gay marriage and abortion are normally treated as votes of conscience. (politics.co.uk)
We are deeply saddened that the Democratic Conference failed to secure the votes they promised, undermining the possibility of a credible bipartisan vote of conscience on the merits of marriage equality. (towleroad.com)
Thus some of us, and perhaps many of us, are going to be investigating how to cast a write - in vote of conscience in November. (firstthings.com)