MW writes in with this link, which confirms the story.
Apparently, there was an "Ambassadors for Peace" awards ceremony, at which Moon gave the keynote address, in the Dirksen Senate Office Building, given by the "Interreligious and International Peace Council."
Here's the link to the program. Here's the "Host Committee," filled with plenty of names of Members (yes, Democrats too). And, here's a bit of what Moon had to say to them.
The five great saints and many other leaders in the spirit world, including even Communist leaders such as Marx and Lenin, who committed all manner of barbarity and murders on earth, and dictators such as Hitler and Stalin, have found strength in my teachings, mended their ways and been reborn as new persons. Emperors, kings and presidents who enjoyed opulence and power on earth, and even journalists who had worldwide fame, have now placed themselves at the forefront of the column of the true love revolution. Together they have sent to earth a resolution expressing their determination in the light of my teaching of the true family ideal. They have declared to all Heaven and Earth that Reverend Sun Myung Moon is none other than humanity's Savior, Messiah, Returning Lord and True Parent. This resolution has been announced on every corner of the globe.