"AUSA O'BRIEN read a letter, typed on TOM DASCHLE letterhead, dated April 13, 1995, from STEVE ERPENBACH and SENATOR TOM DASCHLE to DR. TIMOTHY YU which stated that HUANG had attended an event for DASCHLE and that HUANG encouraged DASCHLE to meet with YU."
And one other mention from the link:
"HUANG may have given YU's name to YOST as a person interested in becoming involved in the DSCC again." "The name STEVE ERPENBACH sounded familiar to HUANG." "HUANG may have suggested names of possible contributors to ERPENBAC'H and TRICIA RIFFENBERG.