Democrats haven’t won a positive campaign since Obama

Democrats haven’t won a national election without running against Trump since 2012.

This poses a problem for them: In 2028, Trump will be off the ballot. This span of more than a decade epitomizes the breadth of the Democrats’ dilemma: In three years, do they want to run on the past and what has worked, or positively on the future, which hasn’t succeeded for them in 16 years?

The last time Democrats won a national election running for someone, that someone was Barac...