The story: On the eve of Iran’s hotly contested presidential runoff, hardline candidate Saeed Jalili is facing allegations that his campaign is using financial incentives to win votes. Jalili’s Reformist rivals also accuse him of receiving money from political and business allies who benefit from his proclivity against engagement with the west. The allegations have put a spotlight on campaign financing—and shadowy networks that benefit from sanctions.

The coverage: Former foreign minister Mohammad Javad Zarif (2013-21) in a campaign speech on July 2 accused Jalili of handing out money and...