Complex sentence: Compared to fellow First Ladies when their husbands left office, Reagan's approval was higher than those of Rosalynn Carter and Hillary Rodham Clinton, however she was less popular than Barbara Bush and her disapproval rating was double that of Carter's.
Split into simpler sentences: Compared to fellow First Ladies when their husbands left office, Reagan's approval was higher than those of Rosalynn Carter and Hillary Rodham Clinton. However, she was less popular than Barbara Bush and her disapproval rating was double that of Carter's.