CAIRO-Opposition leader Ayman Nour has accused a vocal critic of the Egyptian regime of weakening the opposition by signing a petition for the son of the Egyptian President Hosni Mubarak to run for president in next year's elections. Nour, the founder of the liberal al- Ghad (Tomorrow) Party and a former presidential candidate, said Saad Eddin Ibrahim, an Egyptian-American rights activist, had sabotaged the work of Egypt's liberalists by adding his signature to a petition asking Gamal Mubarak to run for president. “Ibrahim was a major opponent to political succession,” Nour told a rally in the coastal city of Alexandria. “But the strange thing is that he had become one of the signatories of the petition,” he added. Ibrahim had riled his colleagues in the opposition by signing the petition presented to him by a group of Gamal Mubarak supporters who started a campaign to put pressure on the son of the President to rule Egypt following the end of his father's tenure next year. Mubarak, 82, has yet to say if he will seek a sixth term in office. Some of his colleagues in the opposition had even pointed to a deal between