Complex sentence: On the other hand, Revere biographer James Giblin disagreed with some of Palin's remarks, characterizing her comment about warning the British as a "blooper," and a director from the Paul Revere House also disagreed with historical descriptions made by Palin.
Split into simpler sentences: On the other hand, Revere biographer James Giblin disagreed with some of Palin's remarks, characterizing her comment about warning the British as a "blooper". A director from the Paul Revere House also disagreed with historical descriptions made by Palin.