Complex sentence: Prominent BNP dissidents Chris Jackson and Michael Easter joined the NF in the latter half of 2009 while, more recently, the veteran nationalists Richard Edmonds and Tess Culnane have both rejoined the party.
Split into simpler sentences: Prominent BNP dissidents Chris Jackson and Michael Easter joined the NF in the latter half of 2009. The veteran nationalists Richard Edmonds and Tess Culnane rejoined the party.