I know it's popular to knock down Bernie Sanders BUT

[George II]

40. He's "the most popular politician in America" among a very select, small set of "politicians"...

...chosen by the pollster, if that article is using the Harris-Harvard poll, although the author doesn't say what he's basing it upon.

If so, that poll included only 12 politicians, one of whom was the non-politician Steve Bannon (who was fired even before the latest poll was released that included his name)

Or, it could be based on that highly-questionable poll that rated politicians among their own constituencies, not nationally. I.e, Sanders was rated by a subset of only Vermont voters (200,000 total voters), Chuck Schumer was rated by a subset of only New York voters (7.5 MILLION total voters), Kamala Harris was rated by a subset of only California voters (a total of more than 14 million)

In fact, both New York and California each have more black and Hispanic voters than Vermont has voters. By "rating" politicians only by their constituencies, they're certainly not rating them among a cross-section of Americans.

This shows the fallacy of these "most popular" polls that we see bandied about here in DU.

And reminder, the headline of that link is prefaced with "OPINION".