Complex sentence: All of the current members were elected at the 56th general election held on September 18,2006, except for Chris Collins, who was elected in a by-election on March 5 2007 as a result of the resignation of Bernard Lord on January 31 2007.
Split into simpler sentences: All of the current members were elected at the 56th general election held on September 18,2006. There is currently one vacancy as a result of the resignation of Bernard Lord on January 31 2007.