Joe Biden mixed up Angela Merkel for a former dead German chancellor twice during a campaign event. In his latest gaffe, Biden, 81, claimed to have spoken to Helmut Kohl in 2021 at a G7 summit, despite the German politician having been dead for four years. The 81-year-old had in fact spoken to Merkel at the summit, where leaders were discussing the January 6 Capitol riots, which had happened a few months prior. Speaking at a fundraiser in New York yesterday, he said: “Helmut Kohl turned to me and said, ‘What would you say, Mr. President, if you picked up the London Times and learned that 1,000…