The Taoiseach has told the Dáil that a trade deal between the EU and Canada can be ratified once Irish legislation has been amended.

The Supreme Court has ruled that the Comprehensive Economic Trade Agreement (CETA) is unconstitutional in its current form.

Micheál Martin said that he welcomed "the clarification", in which the court "ruled on a point of law which can be remedied" through "an amendment to the Arbitration Act".

Then CETA can be ratified, he said.

He was responding during Leader's Questions to Richard Boyd Barrett, Solidarity-People Before Profit, who said that he expects "many, many thousands of people" to attend the Raise the Roof national protest on Saturday week in Dublin.

Mr Boyd Barrett then criticised the Government's support of CETA, warning that the deal would allow speculators to sue governments who try to protect renters and home-owners.

The Taoiseach said that Mr Boyd Barrett's remarks were "disingenuous" and called his "conflation" of two issues the mark of a "polemicist".

He rejected the suggestion that countries could be sued, and he told the deputy not to "scare-monger" over "hypothetical" and "theoretical" scenarios.

"You lot over there need to come clean where you stand in relation to free trade", Mr Martin said, warning that they would "grind the country to a halt."