If I was going to steal an election, I would not do it like Mr. Ahmadinejad. From the WSJ, Amir Taheri writes:
Mr. Ahmadinejad was credited with more votes than anyone in Iran’s history. If the results are to be believed, he won in all 30 provinces, and among all social and age categories. His three rivals, all dignitaries of the regime, were humiliated by losing even in their own hometowns. This was an unprecedented result even for the Islamic Republic, where elections have always been carefully scripted charades.
Many in Tehran, including leading clerics, see the exercise as a putsch by the military-security organs that back Mr. Ahmadinejad. Several events make these allegations appear credible. The state-owned Fars News Agency declared Mr. Ahmadinejad to have won with a two-thirds majority even before the first official results had been tabulated by the Interior Ministry.
I would try to make the results believable. Here is more on how insane the results are: