TEHRAN, Jan. 25 (Xinhua) -- Iran's Majlis (parliament) speaker, Ali Larijani here Sunday criticized new U.S. President Barak Obama's theory of change, saying it is doubtful, state TV (IRIB) website reported.

Obama's "silence in the criminal game of Israel in Gaza and (his)practical support of this (Israeli) regime have raised a lot of doubts about the theory of change," Larijani was quoted as saying.

Obama's recent opening statements about the U.S. responsibility to preserve the security of Israel rather than defending the oppressed Palestinians "have further blurred this theory," Larijani added.

On Saturday, Brigadier General Mir-Faisal Baqerzadeh, a commander of Iran's Islamic Revolutionary Guards Corps (IRGC) also urged that the U.S. president should distance himself from the Israeli government as a first step toward change.

The U.S. gives "blind support for Israel," Baqerzadeh denounced, calling on Obama "to understand the consequences of Israeli actions in the region."

"The 44th U.S. president cannot claim to be able to bring significant change in the ways and means of Washington unless he can end the jaundiced White House approach towards the Palestinians," said Baqerzadeh.

The United States and its allies have denounced Iran's supportive claims to Palestinians and have called the Iran-backed Palestinian group (of Hamas) as a terrorist group and have further accused Iran of trying to develop nuclear weapons under the cover of a civilian nuclear program.

Iran denies the charges and insists that its nuclear program is for peaceful purposes only.