A fascinating struggle is emerging within the Democratic Party between an old warhorse and a rising young political stallion.

It’s the Beto-Bernie brouhaha. Sen. Bernie Sanders of Vermont — who’s actually an independent who caucuses with Senate Democrats — is trying to fend off the surge of support being shown for Beto O’Rourke, the West Texas congressman who came within a whisker of knocking off Sen. Ted Cruz in the 2018 midterm election.

Let me be candid: I am not feeling the “Bern.” Sen. Sanders fought hard for the 2016 Democratic nomination, but fell short. He preached a one-page sermon: too few people have too much wealth and he wants to take some of that wealth away from the rich folks; he calls it “income inequality.”

O’Rourke’s message is good bit more comprehensive. He speaks to an array of progressive issues: immigration reform, education reform, environmental protection, and yes, income inequality.

I’m not convinced either man should run for president in 2020, but if given a choice, I’m going to roll with Beto.

Sanders is trying to undercut Beto’s surge.

As NBC News reports: The main line of attack against O’Rourke is that he isn’t progressive enough — that he’s been too close to Republicans in Congress, too close to corporate donors and not willing enough to use his star power to help fellow Democrats — and it is being pushed almost exclusively by Sanders supporters online and in print.

That is precisely another point that frustrates me about Sanders. He is unwilling to reach across the aisle. O’Rourke, who has served three terms in the House from El Paso, has shown an occasional willingness to work with Republicans rather than fight them every step of the way. We need more, not less, of that kind of governance in Washington.

Nevertheless, the intraparty struggle is likely to be just one of many to occur among Democrats as they struggle for position to battle the Republican Party’s nominee in 2020.

I was going to assert that Donald Trump would be that person. However, given all that has happened in the past two weeks or so . . . I am not quite as certain that the president be the one to take the GOP fight forward.