The opinions expressed below are those of Jon Keller, not those of WBZ-TV, CBS News or Paramount, a Skydance Corporation .

Massachusetts Congressman Seth Moulton officially announced Wednesday he's running against 79-year-old Sen. Ed Markey in the 2026 U.S. Senate race.

"I just don't think we can wait six years for new leadership in our party," Moulton, 46, a Democrat who represents the Sixth District, north of Boston, told WBZ-TV . "The status quo is not working, and our party leaders are clinging to that old playbook that's gotten us two terms of Donald Trump."

It's an argument former Congressman Joe Kennedy made - and emphatically failed to capitalize on - when he challenged Markey back in 2020. Markey has been in public office for 52 years, 49 of them in Congress.

But

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