In addition, Democrats do everything possible to make sure nobody left of center wins the Democratic nomination: when there was a real challenge to the corporate Democrats (Bernie in 2016 and 2020), they did everything they could to rig the primary process in order to keep out any leftward movement. Similarly for 2024, instead of holding debates to convince Democrats that Joe Biden was still up to the task, they held no debates and even canceled the primaries in several states. In 2020, polling showed that Bernie would have a much more comfortable path to victory than Biden, but Democrats were more comfortable with Trump than Bernie.
In addition, Democrats do everything possible to make sure nobody left of center wins the Democratic nomination: when there was a real challenge to the corporate Democrats (Bernie in 2016 and 2020), they did everything they could to rig the primary process in order to keep out any leftward movement. Similarly for 2024, instead of holding debates to convince Democrats that Joe Biden was still up to the task, they held no debates and even canceled the primaries in several states. In 2020, polling showed that Bernie would have a much more comfortable path to victory than Biden, but Democrats were more comfortable with Trump than Bernie.