HarrisX released their results late last night.
The poll questioned 909 Registered Democrats and Democratic Leaning Independents. It was in the field June 28-30, 2019.
"Biden 28%
Sanders 14%
Harris 11%
Warren 8%
Buttigieg 4%
O'Rourke 3%
Booker 2%
Castro 2%
Delaney 1%"
15% were undecided.
This poll is in line with the Morning Consult poll with the exception of this poll had Harris ahead of Warren by 3 points while the MC poll had them tied at 12. Both polls had Biden ahead of Sanders by 14 points.
HarrisX will release the balance of the poll today.