Jan. 12, 2024 2:05 pm ET

The Federal Reserve ran an operating loss of $114.3 billion last year, its largest ever, a consequence of its campaign to aggressively support the economy in 2020 and 2021, then jacking up interest rates to combat high inflation.

The losses added to already large federal deficits that have required bigger auctions of Treasury debt. The central bank’s losses could continue for as long as short-term interest rates remain near current levels. That has the potential to fuel new political attacks on the Fed, though there have been no signs of that so far.

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