VoicesThomas Beaumont - Associated Press @openpublishPolitics & SocietyNewsJoe Biden to announce 2020 bid on ThursdayBrian Slodysko - Associated PressSteve Peoples - Associated PressThomas Beaumont - Associated PressApril 24, 2019Answering perhaps the most significant question of the early 2020 election season, former Vice President Joe Biden will launch his presidential campaign on Thursday.