William Galston had this bit of circularity in his Tuesday op-ed in The Wall Street Journal:

Economists studying past tariffs have found that their effects endured even after the tariffs were removed. … Further, the Federal Reserve Board is concerned about Americans’ increased inflation expectations, which could trigger a damaging price spiral.
The American people smell a rat. In a recent poll by the Economist/YouGov, 68% said that higher tariffs mean higher prices and that consumers will bear a large share of the burden.
They’re right. Tariffs are import taxes paid in the importing nation.

It couldn’t possibly be that we Americans poll that way because that’s what we’re told by a steady stream of news writers, including a plethora of them who cite “economists” or who cite named economists without also citing those economists’ data.

Instead, these news writers just make their bald, unsubstantiated claims, providing no data at all.

It may well be true that tariffs, by their nature, are inflationary. That certainly seems plausible. However, plausibility isn’t fact, and it would be good to see the evidence—including evidence indicating how inflationary tariffs are, if they are, and under what circumstances.