Pennsylvania, Joe Biden's home state, is seen as decisive in the presidential elections on November 5. It is an industrial region, part of what in the United States is called the rust belt.

In that State, protectionism is on the rise. The president has launched a campaign this week in Pennsylvania and has reserved the star announcement for this afternoon: tripling tariffs on Chinese steel and aluminum. The measure will provoke the foreseeable rejection of Beijing by the world's largest consumer of steel and aluminum. Biden presents himself as the most pro-union president in history. He is taking advantage of these days, mixing official events with other campaign events in Pennsylvania to show himself as genuinely concerned about the interests of workers. He marked the contrast in his native Scranton. "Scranton is a place that gets into your heart and never leaves," he said. 'I learned that money does not determine your worth,' he continued. 'People like Donald Trump learned a different lesson,' he added. The Administration claims that China is distorting markets and eroding competition by unfairly flooding the market with below-market-cost steel. "China is simply too big to play by its own rules," Lael Brainard, national economic advisor to the White House, said. Brainard said that China's policy-driven overcapacity poses a serious risk to the future of the U.S. steel and aluminum industry.Treasury Secretary Janet Yellen criticized the International Monetary Fund (IMF) on Tuesday for not focusing on what she considers unfair Chinese practices. Yellen: When the global market is flooded by artificially cheap Chinese products, the viability of American and other foreign companies is called into question, referring to new industries such as electric vehicles, lithium-ion batteries, and solar energy. "I have expressed to senior Chinese officials my concern about features of the Chinese economy that have increasingly negative impacts on the United States and the rest of the world,' she said in Beijing.