U.S. Vice President Kamala Harris formally accepted the Democratic Party’s 2024 presidential nomination, setting the stage for a high-stakes contest against former President Donald Trump. Harris, who will become the Democratic candidate following President Joe Biden’s withdrawal from the race last month, could make history as the first woman elected to the U.S. presidency. Harris pledges unity and progressAt a packed event in Chicago’s United Center, Harris delivered her acceptance speech on the final night of the Democratic National Convention, which was marked by a strong emphasis on unity a…