The three main reasons I’ve heard in the media for Joe Kennedy III’s defeat: not a clear enough campaign message, didn’t go negative soon enough, didn’t go far enough left.
But those three reasons are weak because Kennedy started with a 10-point lead in the polls so the onus was on Markey to differentiate himself whereas Kennedy used the same message that his relatives John F. Kennedy and Ted Kennedy successfully used to win their senate seats, i.e. he would do “more for Massachusetts.” And then as to the other reasons, Joe Kennedy’s negativity most likely hurt him with progressives, which I’ll get into in a second, and then finally there was little ideological difference between Joe Kennedy and Edward Markey as they were both campaigning for “racial justice,” Medicare-for-All, and the Green New Deal.
The real reason for Joe Kennedy III’s defeat can best be encapsulated by a moment. 43 minutes into the last Massachusetts U.S. Senate Democratic Debate:
Senator Markey: All I want him to do is tell his father to stop spending money on negative commercials in Massachuettes in the era of Trump. We should all be positive with a big vision for where this country is going. Instead the Congressman is running a relentlessly negative campaign which I do not think is good for Massachuettes and he should tell his brother and his father to stop it.
Congressman Kennedy: Senator, if we’re going to… {pauses to collect thoughts}… Your campaign supporters have put out tweets, and bullied my supporters, and have put out tweets saying, ‘Lee Harvey got the wrong Kennedy.’ That, ‘Where is Lee Harvey Oswald?’ And not a word coming from you. Not a word! So cut the complaining about negative attacks!
Of course, Senator Markey quickly denounced those tweets and proceeded to point out the inconvenient fact that whoever said those mean things isn’t affiliated with his campaign, i.e. a staffer/volunteer/family.
Congressman Kennedy never named the user who sent those tweets so we can only conclude it was somebody with a stock icon and a username like JaneDoe53 or IAmNotARussianBot2342. But by invoking his great uncle’s assassination to try and score political points, it showed just how far Congressman Kennedy was willing to go to win.
Congressman Kennedy’s attack line was an unfair complaint because how could he reasonably expect Senator Markey to apologize every time one of 262 million Twitter users says something mean about him or his family? It’s also a poor excuse to say that so long as people say mean things on Twitter then Senator Markey can’t complain about his father and brother spending millions of dollars on negative attack ads via a Super PAC.
It’s difficult to imagine Congressman Kennedy genuinely being angry at Senator
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https://www.youtube.com/watch?v=FTT1TROEEGs