(CNN) The headline-grabbing Democratic infighting between Speaker Nancy Pelosi and the high-profile progressive Rep. Alexandria Ocasio-Cortez (AOC), D-New York, must be bringing joy to President Donald Trump and the GOP. After all, a divided Democratic party would be a great boon to Trump's 2020 reelection bid. But Trump had changed that demand for purity and replaced it with practicality, meaning they were now supporting anyone who was the Democratic nominee. But the sense of urgency and desperation to defeat Trump actually trumps progressive purity tests. The unity that Democrats showed in 2018 is the roadmap to their victory in 2020 -- and the greatest threat facing Trump.

Source: CNN July 14, 2019 20:33 UTC