Who is really winning the Democrats’ presidential nomination fight? The liberals.

While the media keeps spinning a tale of “centrists” and “liberals” duking it out for control of the Democratic Party, the truth is that the party’s center of gravity has shifted so far left that they will now nominate the most liberal major party candidate in American history.

That was plainly true when it seemed socialist Vermont Sen. Bernie Sanders was ascendant, but will also be true of so-called centrist Joe Biden, whose own campaign is publicly touting an agenda that is “dramatically to the left of traditional Democratic policy platforms.”

First, Biden is proposing the largest tax increase in American history — an estimated $4 trillion over 10 years, according to the nonpartisan Tax Policy Center. Hillary Clinton’s tax plan would have raised taxes by only $1.4 trillion.

Biden’s plan would hit taxpayers in every income level, hiking taxes for middle-income households, raising the top individual tax rate, slashing deductions for many earners, forcing taxpayers to pay income taxes on unrealized gains at death, and raising corporate taxes in a way that would hurt workers and jobs. Americans have never faced such an expensive tax hike.

Or take healthcare. Biden proposes a “public option,” which has been described as a “Trojan horse” for a single-payer, government-run healthcare system. The Center for American Progress’s public option plan, just as Biden’s, “squeezes out the private insurance market in short order.” Enrollees would be barred from paying for healthcare out of their own pockets, and tax hikes on employers would heavily incentivize them to stop providing health insurance to their employees. Biden glibly claims he would just “make improvements” to Obamacare, but the policy he is promoting would achieve a government takeover of healthcare by stealth, phasing it in so as not to “frighten people into thinking they’ll lose their private insurance,” as Obamacare architect Jacob Hacker claims.

On immigration, Biden has run far to the left of his former boss President Barack Obama, calling deportations of illegal immigrants during his administration “a big mistake.” Biden opposes the Trump administration’s efforts to withhold federal funds from sanctuary cities, an about-face from when he last ran for president in 2007. Biden proudly raised his hand when asked if he favored giving taxpayer-subsidized health benefits to illegal immigrants, and has pledged not to deport anyone, not even dangerous criminals, in the first 100 days of a Biden presidency.

Gun control is another area where Biden backs a hard-left agenda. He announced he would put Beto O’Rourke, who favors police-enforced gun confiscation, in charge of “the gun problem.” Biden himself has called for a federal firearm licensing system, mandating all guns be fingerprint-locked, and bans on “assault weapons” and high-capacity magazines.

Nowhere is Biden’s radicalism more apparent than in his embrace of the Green New Deal, which he called “a crucial framework for meeting the climate challenges we face.” Biden has pledged that if he is president, he will ban all fracking and offshore exploration, and there would be “no ability for the oil industry to continue to drill, period.” His Green New Deal plan would spend $1.7 trillion over 10 years, and his goal of zero emissions in just three decades would destroy American jobs and industries.

Then there is abortion. Biden recently abandoned his 40-year opposition to taxpayer funding of abortion to kowtow to his party’s far-left. Not only does he now support federal funding for abortion in the United States, but he wants to reverse the “Mexico City policy” that prevents U.S. dollars from being used to fund abortion in other countries.

Sanders does not have to mount an against-all-odds comeback for the Democratic Party to nominate the most left-wing candidate in its history. The party’s radical base has already won the battle of ideas. This is not your father’s Joe Biden. This is a candidate who has been fully captured by a political party that has been overrun by hard-left liberals.

So when the media calls Biden a “centrist,” don’t buy it. There are no centrists left in this Democratic primary, just different shades of the same liberal hue.

Steven Law is president of the Senate Leadership Fund, the largest outside group focused on electing Republicans to the U.S. Senate.