As a candidate, President Donald Trump talked a lot about raising tariffs. The first one he has officially implemented is on China, the United States' biggest source of imports.

Asked during the campaign whether he would impose tariffs of 60% on Chinese goods, Trump said, "Maybe it's going to be more than that."

Trump hasn't gone to 60% yet. But he did start with a 10% tariff on China effective Feb. 4. Trump said the purpose was to hold China "accountable to their promises of halting illegal immigration and stopping poisonous fentanyl and other drugs from flowing into our country."

Then, Trump announced Feb. 27 in a Truth Social post that the tariff on China would rise to 20% on March 4.

A Chinese official called Trump's tariff increase "blackmail," saying that China has made progress on antifentanyl efforts, including crackdowns on precursor chemicals and trafficking rings, Reuters reported.

In early February, China retaliated with tariffs of its own, on such products as liquefied natural gas, coal and farm machinery, as well as an investigation into Google.

Trump, who has exercised broad legal authority to unilaterally impose tariffs without congressional action, has paused the start dates for tariffs on other countries, including Canada and Mexico. So the current policies are only a snapshot in time and are subject to negotiation and change. 

In Trump's first two months in office, he ratcheted up tariffs on China to one-third the level he floated during the campaign. For now, this promise rates In the Works.