House Speaker John Boehner is playing a heroic role right now. In his efforts to prevent the Bush tax cuts from expiring, Mr. Boehner is aggressively taking on President Obama’s leadership ineptitude on the economy.

In essence, Mr. Boehner is pushing a Republican policy to wrap up a debt-limitation bill and extend the Bush tax cuts in one fell swoop before the election — and before all the last-minute, crisis-oriented, political machinations that would come in a lame-duck Congress, threatening another credit downgrade and leading to a business-hiring freeze and plunging stock market, all of which happened last year.

Tax-cut certainty is so vital right now because the anemic economic recovery may be moving towards deflation. That’s the message of a gold price that has collapsed by near 20%, falling from around $1,900 an ounce to the mid-$1,500s. With a risk-averse economy at home, and with the Greek and European financial crises abroad, the demand for dollars seems to exceed the dollar supply printed by the Fed.

This could be solved by more quantitative easing. But a better approach for a system already oversupplied with unused liquidity would be the extension of tax-rate growth incentives, not more monetary pump-priming. 

The uncertainty over the Bush tax cuts already has caused a number of business leaders to threaten a hiring freeze and a dampening of investment until they can figure out the after-tax cost of capital and rate of return on investment. Hiring has slowed noticeably in recent months. A number of Wall Street economists are marking down the anemic recovery even more, suggesting that the 3% growth at the end of last year, which faltered to 2% growth in the first quarter, could be even less in the period ahead.

A bunch of CEOs have even formed their own march on Washington. Eighteen of them just wrote to Treasury man Timothy Geithner, begging him to oppose tax-rate hikes on dividends (to 45% from 15%) and capital gains (to near 30% from 15%, taking the “Buffet Rule” into account). “Equity capital is the life blood of investment and job creation for U.S. companies,” they wrote. They argued that the administration’s tax-hike plans would do great harm to American competitiveness and capital formation.

According to accounting firm Ernst & Young, the top U.S. integrated tax rate on corporate profits and dividends is on course to hit 68.6%, significantly higher than all other OECD countries, as well as Brazil, Russia, India, and China. Capital gains would rise to 56.7%.

Speaker Boehner knows this. So he’s begun a valiant fight to get supply-side tax reform at the top of the congressional agenda well before the election. Similarly, House budget chair Paul Ryan is suggesting at least a six-month extension of the Bush tax cuts, so as not to disrupt business. (By the way, the Ryan tax-and-spending-reform budget got 41 votes in the Senate, while President Obama’s budget got none.)

In a recent interview, former top Obama economic advisor Larry Summers told me the U.S. recovery is going “ahead of schedule.” Really? But former Obama economist Austan Goolsbee gives a more realistic assessment by referring to a subpar 2% forecast that is way too slow to spark faster job creation.

Bizarrely, some 25 million people have vanished from the labor force — from unemployment, underemployment, or simply dropping out all together. Half of U.S. households are now on some form of federal-transfer-payment assistance. So as we pay so many people not to work, we’re sapping the vitality of the economy.

Governor Romney recently gave a fine speech, blasting Mr. Obama’s profligate spend-and-borrow policies. He described “a prairie fire of debt sweeping across Iowa and the nation,” and he tied our newfound debt to the “tepid recovery.”

Lower spending alone, while important, is not going to solve the economic-growth problem. Yes, moving spending to 20% of GDP from 24% will free up private resources. But lower tax-rate incentives on the extra dollar earned and invested is a more powerful economic-growth tool. Romney should push his 20% tax-rate-reduction plan. That would add liquidity to fight deflation, and would provide new economic-growth incentives.

As for John Boehner’s goal of an early extension of the Bush tax cuts, it’s going to be an uphill climb. Democrats want to raise taxes, not cut them. But at least the GOP will have a coherent growth-and-jobs message. They can tell the public how important it is to avoid falling off the massive tax cliff which looms ahead. Deflationary fears can ease. And they can make it plain to voters that the GOP has a growth message in these perilous economic times, while the Obama Democrats do not.