Environment Minister Alan Kelly is denying that party members are shaken after Deputy Anne Ferris lost the whip yesterday.
The Wicklow TD voted against her party in favour of Clare Daly's amendment on abortion for fatal foetal abnormalities.
At a meeting of the Labour parliamentary party yesterday, Minister Kelly, also deputy leader of the Labour party, comforted Deputy Ferris, who was upset.
While Minister Kelly would not comment on what he said to Ms Ferris, he said that party members would remain in contact with her.
"The Labour Party is a very united party, we're very clear on what we have achieved and very clear on why we're going into the future, and as deputy leader, I will drive that," he said.
"I spoke to Anne. Obviously it's a very sensitive issue, and it's an issue that Anne felt very strongly on, but we'll be speaking to Anne into the future.
"I mean, this is a unique issue, a very sensitive issue. But constitutionally, I can't stand here and vote for something that I know to be unconstitutional.
"In fact, it would be against the constitution to do that."