The NYT recently followed up on that theme.
The Partisans Are Wrong: Moving to the Center Is the Way to Win
American politics today can seem to be dominated by extremes. President Trump is carrying out far-right policies, while some of the country’s highest-profile Democrats identify as democratic socialists. Moderation sometimes feels outdated.
It is not. Candidates closer to the political center, from both parties, continue to fare better in most elections than those farther to the right or left. This pattern may be the strongest one in electoral politics today, but it is one that many partisans try to obscure and many voters do not fully grasp.
The evidence is vast. Republicans have frittered away winnable races in Alabama, New Hampshire and elsewhere over the past decade by nominating extremist candidates, while Senator Susan Collins of Maine, a moderate Republican, is the only sitting senator who represents a state that reliably votes the other way in presidential elections. On the Democratic side, there are no progressives in the mold of Alexandria Ocasio-Cortez or Bernie Sanders who represent a swing district or state. Instead, the Democrats who win tough races work hard to signal to voters that they are less progressive than their party.
The editorial board appears to have left the question on the best way to govern for another day. But it clearly thinks centrism is the best way to get elected.
One hopes both sides will take a lesson from the current trumpian disaster and Mamdani's impending failures.