This may be the Democrats' last chance to recover working-class Whites

The blue-collar barricade looms as the most stubborn obstacle to President Joe Biden enlarging his base of support.

As both candidate and president, Biden has devoted enormous effort to regaining ground with working-class voters, particularly the White voters without college degrees who have drifted away from the Democrats since the 1970s. But in the campaign, he improved on Hillary Clinton's anemic 2016 performance with those voters only modestly. And in office, an array of recent polls show he's failed to increase his approval rating with those non-college-educated White voters much, if at all, beyond the roughly one-third of them who he attracted last November -- even though he's aimed much of his rhetoric and presidential travel at them and formulated an agenda that would shower them with new government benefits.