This is the first time I have heard of Billy Long.
Long time republican representative (MO-7) Roy Blunt ran for the US senate seat vacated by Kit Bond.
In the August, 2010 republican primary, Billy Long and 6 others ran for that open seat. Long won with 36% of the vote.
Long won with 63% of the vote in the November, 2010 general election.
Billy Long has been in office since January 3, 2011.