Pretty sure Obama is the MVES of the Democratic party.

Obama was the hothouse flower of the Democrat party that Bill Clinton singlehandedly wrought. No Bill Clinton, no Barack Obama. Before Bill Clinton, here's what the NYTimes (left wing though not as far left as now, but i.e. sympathetic) had to say about the field of Democrat candidates for president:

"The strongest and saddest impression this viewer took away from the collective appearance of the Democratic Presidential candidates on national television was that Snow White was missing, while the Seven Dwarfs prattled on." https://www.nytimes.com/1987/07/04/opinion/in-the-nation-the...

and you saw similar dynamics at play in the most recent series of elections. Biden was rammed into the nomination in 2020 because non of the field of candidates had a broad enough base of support. On the other side, Trump did what Clinton did, reshaped his party in his own image.