Complex sentence: Wynn has publicly self-identified as supporter of the US Democratic Party in the United States, though he has financially supported both the Democrats and their rivals the Republican Party, contributing $200,000 to the Republican Governors Association in the winter of 2013.
Split into simpler sentences: Wynn has publicly self-identified as supporter of the US Democratic Party in the United States, though he has financially supported both the Democrats and their rivals the Republican Party. Wynn Resorts contributed $200,000 to the Republican Governors Association in the winter of 2013.