FiveThirtyEight: Liberals Would Be Foolish To Primary Joe Manchin
Eight years ago, Rep. Mike Castle of Delaware was headed to the U.S. Senate. Joe Biden had left his seat open upon ascending to the vice presidency, and Castle, a Republican, appeared to be in the perfect position to take it. Delaware is a solidly blue state, but Castle had built a moderate record, was well-liked and held an early lead over his three potential Democratic opponents. His only problem: That moderate record cut both ways. By September 2010, the tea party wave was cresting and Castle got swallowed up. He lost the Republican primary to tea partier Christine O’Donnell. Two months later, O’Donnell lost the general election by 17 points, and Republicans failed to win a majority in the Senate.
The Castle-O’Donnell primary should be a cautionary tale for Democrats now. Some liberal activists want to challenge Sen. Joe Manchin in West Virginia’s 2018 Democratic primary. They complain that he’s too conservative and that he voted to confirm most of President Trump’s Cabinet officials. Manchin is probably safe — Democratic voters in West Virginia are pretty conservative.1 But the impulse to challenge Manchin from the left could be dangerous for Democrats. Manchin, even though he often votes with the GOP, is incredibly valuable to the Democratic Party compared to any plausible alternative.
West Virginia leans heavily Republican on the federal level. Trump won it by 42 percentage points in 2016. Republican Shelley Moore Capito easily dispatched — by 28 percentage points — Democrat Natalie Tennant in the 2014 U.S. Senate race — the last Senate race in West Virginia with a Democrat not named Manchin on the ballot. Tennant, who was the secretary of state, was deemed a “top recruit.” But she performed about as you’d expect for a non-incumbent Democrat running for the Senate from West Virginia.
All told, the chance of a non-incumbent Democrat winning a Senate seat in West Virginia in 2018 is probably somewhere between 1 percent and 2 percent. That’s based on a logit regression of all Senate races with no incumbent running since Manchin was first elected in 2010. The model looks at whether the Democrat2 won or lost as predicted by how Democratic- or Republican-leaning the state was in the previous two presidential elections3 compared to the nation as a whole. You can tweak this analysis (e.g., looking at all open seats since 1992 or all seats, not just those without an incumbent running) or even run a different type of model, but they all would show that a generic Democrat would be a heavy underdog in West Virginia.
more: https://fivethirtyeight.com/features/liberals-would-be-foolish-to-target-joe-manchin/
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