Elizabeth Warren thinks the filibuster's end is nigh

A conversation with the senator from Massachusetts about her new wealth tax plan, capitalism versus socialism, and how to solve the Democrats' Joe Manchin problem (plus: a bonus audio version!)

This week, Senator Elizabeth Warren, Democrat of Massachusetts, formally introduced a wealth-tax proposal that has made grown billionaires cry.

I interviewed her by phone on Tuesday, right after she stepped out of a vote. We talked about:

• whether her proposed wealth tax is too big, as some billionaires charge, or actually too small,

• whether Democrats are s…