US and Iranian officials were saying little Tuesday about a controversy that has erupted over Iran’s choice to be its next envoy to the United Nations, as a member of the House Foreign Affairs committee said the Obama administration should not grant the Iranian diplomat a visa.

Hamid Aboutalebi, 56, a career Iranian diplomat close to Iranian president Hassan Rouhani, told Iranian media in interviews last month that he had been summoned on occasions during the 1979 US Iran hostage crisis to serve as a translator, but was otherwise not involved.

But Aboutalebi’s even remote alleged association with the embassy seizure and hostage crisis that traumatized Americans and ruptured US Iranian diplomatic ties over three decades ago has set off a flurry of denunciations from former US hostages, and some US Iran watchers say Iran should probably pick someone else.

Congress also got involved on Tuesday, further complicating the administration's calculus. Rep. Ileana Ros-Lehtinen (R-Fla.), the chairwoman of the House Foreign Affairs panel on the Middle East and North Africa, began drafting a letter requesting that the State Department deny Aboutalebi's application, Al-Monitor’s Julian Pecquet has learned. The letter is expected to address other issues as well.