evidence: The Biden administration said Friday that it has finalized tariff hikes on certain Chinese-made products that the president first announced in May. [...] Trump implemented sweeping tariffs on about $300 billion of Chinese-made products when he was in office. President Joe Biden has kept those tariffs in place and, after the USTR finished a multiyear review earlier this year, decided to increase some of the rates on about $15 billion of Chinese imports. [...] Other studies have also said the proposed tariffs would raise prices for families, but by a smaller amount. The Urban-Brookings Tax Policy Center, for example, said the impact could be an additional $1,350 a year for middle-income households.