Complex sentence: SiX has a long-term vision of building progressive power and infrastructure at the state level, while working to move policies forward that support working families, protect the environment, defend civil rights and liberties, and strengthen our democracy.
Split into simpler sentences: SiX has a long-term vision of building progressive power and infrastructure at the state level. Together, we are working to move policies forward that support working families, protect the environment, defend civil rights and liberties, and strengthen our democracy.