The Fine Gael leader's approval rating has fallen by 4 to 36, while Fianna Fail leader Micheál Martin is ahead of him.
The scoliosis scandal may be to blame for a dip in popularity for Tánaiste Simon Harris.
The Fine Gael leader's approval rating has fallen by 4 to 36, while Fianna Fail leader Micheál Martin is ahead of him on 44 percent, in the latest Sunday Independent/ Ireland Thinks Poll.
Kevin Cunningham from Ireland Thinks believes there are a number of reasons why Simon Harris's vote may have slipped.

Thousands Of Workers Could Get Tax Back In Time For Christmas, Says Financial Advisor
Tension In Fianna Fáil Over Alleged Rebel List, With Kildare TD Sean Ó Fearghaíl Labelled Part Of Old Guard
Exclusive: Cllr Bill Clear To Join Independent Ireland After Months Of Discussions
WATCH: Car Linked To Attempted Naas Robbery Spotted In Newcastle - Gardaí Warn Public Not To Approach
Gardai Appeal To Public For Assistance In Attempted Burlgary At Osprey Car Park Naas
Vigil This Evening In Kildare Town In Memory Of Ryan Weir Gibbons
Court Hears Gardaí Medically Advised Not To Speak To Alleged 10-Year-Old Victim Of Sexual Assault At Citywest
A New Report Has Highlighted Persistent Gaps In Access To Beds In Stroke Units