November midterm elections are fast approaching, and Democratic candidates are set up to succeed. Whether they follow through is up to them.

On March 24, Democrat Emily Gregory won a state House special election in a Florida district that includes the Mar-a-Lago resort. Her competitor, Republican Jon Maples, had received President Donald Trump’s “COMPLETE AND TOTAL ENDORSEMENT.” It was an important win in a series of triumphs for the Democratic Party.

It makes sense – people are deeply unhappy with Trump and the Republicans allowing him complete control of the United States. Trump’s approval rating is hitting record lows, thanks to the war in Iran, the militarization of Immigration and Customs Enforcement and a struggling economy. There is a window of opportunity that Democrats must seize – yet it still isn’t clear that they’re up to the challenge.

As voters cast their ballots in primary elections across the country, Democratic candidates need to keep in mind that their wins in........

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