“For months, Senate Democrats have quietly pondered an improbable but not unthinkable scenario — that their razor-thin majority, secured only by the tiebreaking vote of Vice President Harris, could be suddenly upended by the absence, incapacitation or death of a single senator!” the Washington Post reports.
“This week, that scenario became reality, with an unexpected twist: In a caucus with 16 senators over 70, including several with documented health issues, it was one of the youngest Democrats, Sen. Ben Ray Luján of New Mexico, who suffered a stroke, leaving the Senate agenda in flux and Democrats pondering the fragility of their governing majority.”

