The idea of thrifty, self-sufficient red states propping up blue states has long been a Republican canard. In 2017, Paul Ryan, who was the House speaker, trotted out this line while pushing to repeal the exemption for state and local taxes as part of the tax package. (Ultimately, the deduction was merely capped.) “States that got their act together are paying for states that didn’t,” he claimed, and promised that his desired repeal would put an end to the rest of the country “propping up profligate, big-government states.”

This claim was wrong then, and it is wrong now. To the contrary, a 2017 Associated Press analysis noted that “High-tax, traditionally Democratic states (blue), subsidize low-tax, traditionally Republican states (red) — in a big way.”

For the past few years, the Rockefeller Institute of Government has been crunching the numbers on what Mr. Ryan might have called “maker” and “taker” states — that is, which states pay more into federal coffers than they receive in federal spending, and vice versa. This year’s report found that, over four years, New York businesses and residents paid in $116.2 billion more than the state received back. New York, in fact, has the “least favorable balance of payments of any state in the nation.”

Of the 20 states with the most favorable balance of payments, a handful, at most, are blue. For every dollar in federal taxes it pays, New York receives 91 cents in return, behind only Connecticut (which receives 84 cents for each dollar), New Jersey and Massachusetts (which both receive 90 cents per dollar). Mr. McConnell’s home state, Kentucky, by contrast, rakes in $2.41 for every tax dollar it sends Washington.

In other words, Mr. McConnell’s state is effectively subsidized by blue states like New York and New Jersey. Gov. Andrew Cuomo of New York reminded Mr. McConnell of this during his Thursday news briefing. “Senator McConnell, who’s getting bailed out here?” the governor demanded. “It’s your state that is living on the money that we generate.”

Mr. McConnell took heat even from some members of his own party. “The last thing we need in the middle of an economic crisis is to have states all filing bankruptcy all across America and not able to provide services to people who desperately need them,” Maryland’s governor, Larry Hogan, the current chairman of the National Governors Association, told Politico in an interview on Thursday.

Representative Peter King, a New York Republican, took particular exception to Mr. McConnell’s suggestion that states were looking for “free money.” “To say that it is ‘free money’ to provide funds for cops, firefighters and health care workers makes McConnell the Marie Antoinette of the Senate,” Mr. King tweeted.