Want to fix an election?

No it's not the Lebanese example (documented) nor the Iranian one (undocumented) ... In Politico, here

".... Ghani alleged that the Karzai government “has already committed substantial fraud in voter registration” by padding the voter rolls in areas where Karzai is strong, using state resources to campaign, encouraging governors and ministers to do political work for him, and dispatching his security forces to “threaten people and prevent them from supporting other candidates.” ......
Jawad said Karzai welcomed international assistance from the U.S., United Nations and other allies in securing the election, for which more than 40 candidates have declared their candidacies, pointing out that there are Taliban-controlled districts where the ability to hold the election is still in doubt. ......
But he suggested that the U.S. may have improperly boosted Ghani and Abdullah by allowing the U.S. ambassador to Afghanistan, Karl Eikenberry, to hold joint press conferences with each of them in recent days. ..."