“Trickle-down economics has never worked,” the President said at a community college in Norfolk, on Monday. “For too long we’ve had an economy that gives every break in the world to the folks who need it the least. It’s time to grow the economy from the bottom up and the middle out.”

While Biden is hardly the first Democratic president to criticize Reagan-era economic policies, he is taking a more ambitious approach than his predecessors toward actually reversing decades of supply-side orthodoxy that has gradually diminished the federal income tax rates on corporations and wealthy individuals. In seeking to pass not one, but two multitrillion-dollar spending bills that would flood the U.S. economy with public sector investment, the White House is aiming to pay for those measures by hiking taxes and closing loopholes on high earners, wealthy investors, and major corporations.

Biden’s proposals would raise the top tax rate on the wealthiest Americans to 39.6% and increase the corporate tax rate to 28%, in the process reversing two major components of President Trump’s 2017 tax cuts (which slashed those rates to 37% and 21%, respectively). Forty years after President Reagan took the historic step of cutting capital gains taxes to 20%, Biden is looking to roughly double that existing rate on those reaping windfalls of more than $1 million. There are also plans to raise taxes and close loopholes on corporations’ foreign profits, and also end the “step-up in basis” practice that has allowed the heirs of wealthy estates to avoid steep tax bills on their inheritances.

Such has been the downward trend on the tax rates paid by these entities that, historically speaking, Biden’s plans remain relatively modest. In an analysis for the New York Times, University of California at Berkeley economics professor Gabriel Zucman found that the President’s tax proposals would still leave the total federal tax rates on the wealthiest Americans below where they stood as recently as the 1990s—let alone the much higher, 50%-plus rates imposed in the pre-Reagan era.

Though the White House has sought to stay faithful to Biden’s commitment to not raise taxes on households earning under $400,000, the tax hikes have been met with criticism from conservatives who fear it would counteract economic growth and harm the U.S.’s global competitiveness. And despite continued evidence that major corporations have deployed the current tax code to avoid taxes on tens of billions of dollars in annual profits, pro-business interest groups have balked at the notion of having to foot the bill for the President’s sprawling proposals.

The coming months are expected to bring a long and contentious debate in Washington that will determine the scope of the legislation that Biden is able to pass through Congress. Republicans already appear unified in staunch opposition to the tax-and-spend nature of what the President is pitching, while Democrats will have to appease the centrist members of their party in what remains a closely divided Senate—a dynamic that could force the White House to compromise on a somewhat leaner spending package financed by a more modest set of tax increases.

Still, Biden is looking to capitalize on a political moment that, in the wake of the coronavirus pandemic’s devastating economic impact, has seen sentiment shift in favor of a more prominent role for the federal government in ensuring the economic well-being of American households and businesses. Four decades after the “Reagan Revolution” ushered in the era of lower taxes and smaller government, “Bidenomics” potentially offers yet another tectonic shift in public policy.