 Boussoukou-Boumba was again the UDD candidate in Kibangou constituency in the June–August 2007 parliamentary election, facing 15 challengers for the seat.He was initially defeated by an independent candidate, Serge Victor Ignoumba, but on 26 October 2007 the Constitutional Court annulled the election in Kibangou (along with three other constituencies).When the second round of the vote was held over again on 26 December 2007 (it was the last seat to be decided), Boussoukou-Boumba was again defeated by Ignoumba; he received 42.76% of the vote against 57.24% for Ignoumba.