Fine Gael and Independents remain at loggerheads over how to vote next week, in a bill on abortion.
Mick Wallace's bill would allow terminations in cases of fatal foetal abnormality, on the basis that a referendum is not needed to legalise terminations in these cases.
However the Attorney General says a referendum would be needed, and that therefore the bill as it stands in unconstitutional.
As a result, Enda Kenny wants the bill to be voted down - but the independent ministers in his cabinet have yet to agree to do so.
Having voted in favour of an identical bill last year, and supporting the principles of the bill, they are still seeking a free vote.
The vote will take place next Thursday, a week after last night's vote - which included an emotional speech from Fine Gael's Kate O'Connell, recounting her own experience of being told an unborn child have profound defects.
Our political correspondent Gavan Reilly reports: