He advocates " free elections " for the region , and believes Palestinians need a stronger voice in the region 's future . On Quds Day in September 2010 Ahmadinejad criticized the Palestinian Authority over its president 's decision to renew direct peace talks with Israel saying the talks are " stillborn " and " doomed to fail " , urging the Palestinians to continue armed resistance to Israel . He said that Mahmoud Abbas had no authority to negotiate on behalf of the Palestinians . Nabil Abu Rudeineh , a spokesman for the Palestinian Authority , fired back , saying , Ahmadinejad " does not represent the Iranian people , ... , is not entitled to talk about Palestine , or the President of Palestine " In September 2010 , Ahmadinejad made a contentious assertion at the 65th session of the United Nations General Assembly by claiming that most people believe the United States government was behind the 9/11 attacks and later called for an inquiry , stating : " The fact-finding mission can shed light on who the perpetrators were , who is al-Qaeda ... where does it exist ? Who was it backed by and supported ? All these should come to light . " The speech triggered many countries ' United Nations representatives to walk out , and US President Barack Obama described the claims as " inexcusable , " " offensive " and " hateful . " In 2010 , Ahmadinejad reiterated the 9/11 conspiracy , and wrote : He made similar comments at the 66th session in September 2011
9/11 attacks
September 11 attacks
Mahmoud Ahmadinejad