President Mahmoud Ahmadinejad of Iran opened Zimbabwe’s international trade fair in Bulawayo on Friday. He and Zimbabwe’s president, Robert Mugabe, who both held on to power after violent, discredited elections — Mr. Mugabe in 2008 and Mr. Ahmadinejad last year — strongly criticized the West, according to The Herald, the state-owned newspaper in Harare controlled by Mr. Mugabe.