File photo by Anna Rose Layden of the The New York Times / The U.S. Capitol building in Washington is seen on July 21, 2022. Democrats appear to be on the verge of passing the Inflation Reduction Act — a bill that probably would reduce inflation but is mainly a desperately needed effort to limit climate change, columnist Paul Krugman writes.

Kyrsten Sinema willing, Democrats appear to be on the verge of passing the Inflation Reduction Act — a bill that probably would, indeed, reduce inflation but is mainly a desperately needed effort to limit climate change. Republicans are, of course, attacking the legislation.

But when I look at the substance of those attacks, such as it is, I can't help feeling more cheerful than I have in months.

For one thing, the debate over the proposal feels like a return to a more innocent time, when Republicans tried to make their case with dishonest claims about economic policy — not insane conspiracy theories and attempts to overthrow democracy.

For another, the Republican critique of the bill is extraordinarily weak.

About that critique. The act calls for $369 billion in climate spending — mainly tax credits for families and businesses that adopt clean- energy technologies, improve energy efficiency and so on. It would also spend $64 billion on extending subsidies that help keep health insurance affordable.

This new spending would be fully paid for, and then some, mainly by cracking down on tax avoidance and evasion. The biggest revenue source is to be a new minimum tax on large corporations. The legislation would also give a desperately underfunded Internal Revenue Service more resources to crack down on tax cheats. And it would seek to save Medicare money by giving the program the power to negotiate over drug prices.

How can Republicans attack such a bill? They can't openly defend the interests of tax evaders and avoiders, although their long-term efforts to starve the IRS of resources show that in practice they are pro-tax cheater. What they have done, instead, is claim — citing an estimate from Congress' nonpartisan Joint Committee on Taxation, known as JCT — that the legislation would raise taxes on the middle class and that this violates one of Joe Biden's campaign pledges.

It's a bogus claim, on multiple levels. First, the act wouldn't raise personal income taxes on anyone. Full stop. It just wouldn't.

What the JCT projects instead are "distributional effects," an attempt to estimate the indirect burden on families resulting from other taxes, which in this case essentially means the possible effect on wages of requiring large corporations to pay a minimal amount of tax.

Estimating these effects is useful, but are they a "tax increase" on workers? Almost any government policy will have an adverse effect on the income of someone, somewhere; is everything the government does a tax increase?

Wait, there's more. The JCT assumes that a significant part of the revenue to be gained from taxing corporations would eventually come out of wages. That's an area of intense academic debate, but there are good reasons to believe that when you're cracking down on tax avoidance the effect on wages is actually minimal.

Finally, despite all the ways the JCT analysis tilts the playing field against the Inflation Reduction Act, the claimed increase in middle-class taxes is tiny. For example, according to the JCT, the federal tax rate on families earning between $50,000 and $75,000 a year would rise from 13.0% to 13.1%.

So the Republican attack on this proposal is, in a word, pathetic.

The right-wing attack on Democrats' new climate policy is, as I said, extraordinarily weak — and that's a wonderful thing to see. While the Inflation Reduction Act is a big deal in itself, many of us hope that it will be only the down payment on an even bigger effort to save the planet. And if this is the best the planet's enemies can do, that's a very good omen.

The New York Times