The Republican tax proposals were bad from the get-go. But they have become steadily worse as they have been turned into bills, which seem so cartoonishly evil they could have been dreamed up by Mr. Burns from “The Simpsons.”

Consider the latest changes to the Senate tax-cut bill being championed by the majority leader, Mitch McConnell, and his merry band. It lavishes generous permanent tax breaks on corporations, while modest tax cuts for the middle class would vanish into thin air after 2025. Millionaires would enjoy average tax cuts of $5,580 in 2027, according to the Joint Committee on Taxation, at which point families earning less than $75,000 a year would pay more taxes.

Let that sink in. This tax bill would take money from working families and give it to the world’s wealthiest people.

The hardest hit would be in high-cost states like California, New Jersey and New York because the bill gets rid of important deductions and the credit for state and local taxes.