The local angle: While those aforementioned agenda items (wealth tax, childcare, etc.) may sound familiar to those who followed Warren’s 2020 presidential campaign, her announcement also included a local subject of increasing relevance as states compete for federal infrastructure dollars: “Build a 21st century transportation system across all of Massachusetts.”
The backdrop: Warren has been saying publicly for months — 22, to be exact — that she intends to run for a third Senate term. But that hasn’t quashed persistent rumblings that she might change her mind, opening up the seat in a state full of ambitious young Democrats. This morning’s news appears to put an end to those rumors. The video also features support from longtime allies like Rep. Ayanna Pressley and Boston Mayor Michelle Wu.
Zoom out: Democrats functionally hold a one-seat majority in the Senate, but they’ll be playing defense in 2024. A total of 34 Senate seats will be up for grabs, 23 of which are currently held by Democrats and independents. Here’s a look at some of the early jockeying.

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A look at Elizabeth Warren's re-election bid — and other 2024 Senate races