To be fair, he (or his staff) apparently arranged for the use of the office by the Washington Times, not by The New Messiah.
"A spokesperson for Senator Trent Lott of Mississippi, the committee chairman, said staff members were examining the application, filed in the name of The Washington Times Foundation, to see if there were any violations of Senate rules."
On the other hand, other members of Congress on both sides of the aisle apparently went above and beyond in their participation.
"One congressman involved, Danny Davis from Illinois, even wore white gloves and carried a pillow holding one of two ornate gold crowns that were placed on the heads of The Messiah and his wife, Dr. Hak Ja Han Moon, at the ceremony.
... The initial invitation, sent to all members of Congress, stated that Mr. Moon and his wife would also be present and honored for their work. But follow-up letters mentioned only the peace foundation and simply told lawmakers who from their states was being honored.
Representative Roscoe Bartlett of Maryland was there, too, and commented:
'I remember the king and queen thing, but … I had no idea what he was king of.'
... Some of the others, like Senator Mark Dayton of Minnesota, insisted they were duped and had no idea that the organization holding the reception was connected to Mr. Moon."
http://www.randi.org/jr/070204another.html#8