Complex sentence: On August 17,2016, Rubin endorsed Libertarian Party presidential candidate Gary Johnson, saying that although he disagrees with the Libertarian party on many issues, it would be helpful to have their voice in mainstream politics.
Split into simpler sentences: On August 17,2016, Rubin endorsed Libertarian Party presidential candidate Gary Johnson. Saying that although he disagrees with the Libertarian party on many issues, it would be helpful to have their voice in mainstream politics.