SINN FEIN'S European election candidate in Dublin has been forced to defend her party's economic policies after they were compared to those pursued by North Korea.
Lynn Boylan argued that her party's policies were "fully costed and based on sound economics" and rejected claims that they would permanently destabilise the country.
Mr Hayes used his speech at his selection convention on Tuesday night to accuse Gerry Adams's party of seeking to create "maximum political chaos".
"Sinn Fein's go-it-alone North Korean economic policy, would have permanently destabilised this country. But that of course is their agenda," he said.
In response to the heavy criticism, Sinn Fein last night hit back at Mr Hayes, claiming that he was "incapable of rational debate".
The party's relatively unknown European candidate Lynn Boylan accused the Fine Gael TD of failing to deliver in their shared Dublin South West constituency.