	In November 1858, Groenendaal was re-elected to the Volksraad for the constituency of Midden-Rietrivier en Grootrivier in Sannah's Poort Fauresmith. This time, he found himself on the side of Boshoff, and up against a majority of the Volksraad, in the debate about unification of the Orange Free State with the South African Republic. Groenendaal, Boshoff, and State Attorney H.A.L. Hamelberg were all for a federation with the Cape Colony instead.