PARIS (AP) — With its militant wing no longer a terror organization as far as the U.S. government is concerned, an Iranian opposition group hosted a U.S. House delegation for the first time Sunday and briefed the lawmakers on the fallout of a deadly rocket attack at a refugee camp in Iraq.

The National Council of Resistance of Iran, a France-based Iranian opposition group, gave a raucous welcome at a Paris hotel to the four representatives, with rhythmic clapping and chants of “Thank You!”