US President George W. Bush's policies have harmed Washington's global image and the country needs "wise" leaders to regain its lost credibility, Iran's Foreign Ministry spokesman said Saturday. Mohammad Ali Hosseini said Bush's policies have isolated him both internationally and at home, citing the Republican Party's losses in Congress last November as proof of Bush's declining popularity. "Instability in Iraq is the result of wrong policies and incorrect decisions of the US government. This illogical approach of the US government is even disliked by the American people," Iran's official news agency, IRNA, quoted Hosseini as saying. "The United States needs...