Dean Obeidallah, a former attorney, is the host of SiriusXM radio's daily program "The Dean Obeidallah Show" and a columnist for The Daily Beast. Follow him @DeanObeidallah. The opinions expressed in this commentary are his own. View more opinion articles on CNN.

(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. And clearly Trump wants to fan the flames of that divide, as we saw with his racist tweets Sunday morning, in which he wrote that he wanted AOC and her closest allies in the House -- Rep. Ilhan Omar, D-Minnesota, and Rep. Ayanna Pressley, D-Massachusetts, who are black, and Rep. Rashida Tlaib, D-Michigan, who is the daughter of Palestinian immigrants -- to go back to their own countries, and that he was sure Speaker Pelosi would be "happy" to work out arrangements for their travel. (Pelosi slammed Trump in response for his racist tweets.)

Dean Obeidallah

But what I witnessed this past week at the annual Netroots convention in Philadelphia tells a far different tale about what's going on with rank-and-file progressives -- and it should deeply worry Trump and his supporters who were hoping for a divided Democratic Party come 2020.

Netroots is an annual gathering of progressive activists that began in 2006 . As Netroots organizers explained to me, it grew from a few hundred attendees who were primarily white men to this year's convention featuring a record crowd of over 3,600 that was remarkably diverse in terms of age, race, faith, sexual orientation, gender identity, etc. And this year's conference was marked by a singular mantra in approaching the 2020 election that I heard time and time again: "Vote Blue, no matter who."

Now, to be clear, that doesn't mean there wasn't a wide range of views by the countless attendees I spoke to regarding which 2020 candidate they were supporting, with many still torn between two or three. But one moment that truly summed up what's going on with the progressive grassroots happened when I spoke to a crowd of a little over 100 people at the convention. I asked them which candidate they were supporting or at least considering. I began by asking about Sen. Elizabeth Warren, which elicited a big cheer. Then Bernie Sanders, and again a sizable number applauded. I went on to measure support (in an unscientific way) for a few of the other top tier candidates, such as Sen. Kamala Harris and South Bend Mayor Pete Buttigieg, with all receiving some level of support, but far below that of Warren and Sanders.

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