Donald Trump is unlike any president we've ever had. He is the only person ever elected to be commander in chief who has not first held public office or served as a general in the military. His principles grow out of five decades of business and celebrity success-not politics-so he behaves differently than do traditional politicians. In UNDERSTANDING TRUMP, Newt Gingrich shares what he learned from more than two years helping Trump and his team throughout the campaign, the election, and during the first months of the presidency.