Why did some democrats oppose hubert humphrey in his 1968 race for the presidency

They did not like his association with the administration’s Vietnam policy. is why did some Democrats oppose Hubert Humphrey in his 1968 race for the presidency.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.