Complex sentence: He was re-elected at the 1917 election for the newly formed Nationalist Party, but at the 1921 election lost his seat to Labor's Jack Simons, and even failing to make the final two-candidate-preferred count.
Split into simpler sentences: He was re-elected at the 1917 election for the newly formed Nationalist Party, but at the 1921 election lost his seat to Labor's Jack Simons. He failed to even make the final two-candidate-preferred count.