Hospital campaigner and by-election candidate John McDermott has made an official complaint to gardaí over an incident with a Fine Gael TD in Roscommon.
Frank Feighan said he regretted if his actions caused hurt to anyone, following an altercation with protesters who approached Taoiseach Enda Kenny’s car during a visit to Roscommon on Friday.
Mr Kenny was met by a small group of demonstrators when he arrived to canvass in the town with the party's candidate in the forthcoming by-election.
In a statement, Mr Feighan said he misread the situation and overreacted.
He said that assessing the situation when he arrived "I formed the opinion that the Taoiseach was going to be confronted in an aggressive and physical manner.
"In hindsight, I misread the situation and overreacted in a tense situation.
"As a Fine Gael TD and a member of the Government, the public expects the highest standards."
In the video, Mr Feighan can be seen elbowing a protester out of the way.
Mr McDermot gave a statement to gardaí in Roscommon at around 7pm yesterday.
He said he felt he had no option because Mr Feighan had not apologised to him personally but to the media.
He said Mr Feighan has made no contact with him since the incident.