A Memo to Our Democratic Presidential Candidates

Don’t make Detroit’s debates a repeat of Miami

Democratic presidential candidates (L-R) former Vice President Joe Biden, Sen. Bernie Sanders (I-VT), Sen. Kamala Harris (D-CA), Sen. Kirsten Gillibrand (D-NY), and Sen. Michael Bennet (D-CO) take part in the second night of the first Democratic presidential debate on June 27, 2019. Photo: Drew Angerer/Getty Images

Primary debates are about two things. First, candidates need to distinguish themselves from the rest of the field — something some of you did more successfully than others in Miami. Second, and more important, these events are about delivering a message that will position your candidacy as our…