The first 2024 presidential debate between President Biden and former President Trump was held on Thursday night. It marked the first time a sitting president debated a former one. It also marked the two oldest candidates ever to run for president, with a combined age of 159. The 90-minute discussion hosted by CNN was more of an incoherent debacle than any substantive debate. Biden was halting and disjointed. He was hard to hear, muffled his lines and often appeared to lose his train of thought.