Complex sentence: Wil Schuurman and Cor Zonneveld joined Janmaat in the House of Representatives and even though they tried to broaden their appeal, the foreigner issue remained central to the party's rhetoric.
Split into simpler sentences: Wil Schuurman and Cor Zonneveld joined Janmaat in the House of Representatives. Despite attempts to broaden their appeal, the issue of foreigners remained central to the party's rhetoric.