Complex sentence: Mezvinsky's brother Norton Mezvinsky is Professor of History at Central Connecticut State University, and his son Marc is engaged to Chelsea Clinton, daughter of former president Bill Clinton and current U.S. Secretary of State and former senator Hillary Rodham Clinton.
Split into simpler sentences: Mezvinsky's brother Norton Mezvinsky is Professor of History at Central Connecticut State University. Edward Mezvinsky's son, Marc, is engaged to Chelsea Clinton, daughter of former president Bill Clinton and current U.S. Secretary of State and former senator Hillary Rodham Clinton.