A group with alleged historical links to Nazi Germany has told NBC News it was “proud” when President Donald Trump’s deputy assistant wore its medal.

Controversy has swirled around Sebastian Gorka, one of Trump’s top counterterrorism advisers, ever since he attended the president’s Jan. 20 Inaugural Ball wearing the honorary medal of Hungarian nationalist organization Vitezi Rend.

NBC News traveled to Hungary to dig deeper into Gorka’s ties with the group, speaking with members of the organization as well as with locals who knew him when he lived there.

“When he appeared on U.S. television … with the medal of the Vitez Order … it made me really proud,” Vitezi Rend spokesman Andras Horvath said in the Hungarian capital of Budapest. Vitezi Rend is also known as the Order of Vitez.