The Biden administration quietly waived sanctions on Iran to allow the hardline regime to sell electricity to Iraq, according to a non-public notification obtained by the Washington Free Beacon that was provided to Congress just as nuclear talks between the United States and Tehran resumed this week.

The timing of the waiver notification—which was signed Nov. 19 but not transmitted to Congress until Nov. 29, the day nuclear negotiations resumed—has prompted accusations the Biden administration is offering concessions to Tehran to generate goodwill as talks aimed at securing a revamped version of the 2015 nuclear deal restart following a months-long standoff.

During the several-month pause, Tehran increased its nuclear program, including the enrichment of uranium and installation of advanced nuclear centrifuges. One senior co …