President Joe Biden slapped major new tariffs on Chinese electric vehicles, advanced batteries, solar cells, steel, aluminum and medical equipment on Tuesday, taking potshots at Donald Trump along the way as he embraced a strategy that’s increasing friction between the world’s two largest economies.

The Democratic president said that Chinese government subsidies ensure the nation’s companies don’t have to turn a profit, giving them an unfair advantage in global trade.

“American workers can outwork and outcompete anyone as long as the competition is fair,” Biden said in the White House Rose Garden. “But for too long, it hasn’t been fair. For years, the Chinese government has poured state money into Chinese companies ... it’s not competition, it’s cheating.”

The tariffs come in the middle of a heated campaign between Biden and Trump, his Republican predecessor, to show who’s tougher on China. In a nod to the presidential campaign, Biden recognized lawmakers from Michigan in his remarks and spoke about workers in Pennsylvania and Wisconsin, all battleground states in November’s election.

Asked to respond to Trump’s comments that China was eating America’s lunch, Biden said of his rival, “He’s been feeding them a long time.” The Democrat said Trump had failed to crack down on Chinese trade abuses as he had pledged he would do during his presidency.

Karoline Leavitt, the Trump campaign’s press secretary, called the new tariffs a “weak and futile attempt” to distract from Biden’s own support for EVs in the United States, which Trump says will lead to layoffs at auto factories.

The Chinese government was quick to push back against the tariffs, saying they “will seriously affect the atmosphere of bilateral cooperation.” The foreign ministry used the word “bullying.”

The tariffs are unlikely to have a broad inflationary impact in the short term because of how they’re structured, some not to take effect until 2026, but there could be price increases in the meantime for EV batteries, solar and some other specific items.