Complex sentence: Washington, D.C. Mayor Vincent Gray has been a strong advocate of 1776, having helped secure real-estate for the 1776 Campus as well as providing $380,000 in grant funds for its activities.
Split into simpler sentences: Washington, D.C. Mayor Vincent Gray has been a strong advocate of 1776. He helped secure real-estate for the 1776 Campus and provided $380,000 in grant funds for its activities.