Question for Bernie supporters- VP pick?

[Tom Rinaldo]

19. I think Harris would

She was a cosponsor of Bernie's Medicare for All Bill in the Senate

Also this more recently:

January 09, 2020
Harris, Lawmakers Introduce No War Against Iran Act

WASHINGTON, D.C. – U.S. Senator Kamala D. Harris (D-CA) on Thursday joined Senator Bernie Sanders (I-VT) and 11 of their Senate colleagues in introducing the No War Against Iran Act, which would deny the Pentagon of any funds for unauthorized use of military force against Iran.

And this:

WASHINGTON, D.C. – U.S. Senator Kamala Harris (D-CA) today became the fourth U.S. senator to cosponsor Senator Cory Booker’s (D-NJ) landmark bill to end the federal prohibition on marijuana. The Marijuana Justice Act would remove marijuana from the list of controlled substances, making it legal at the federal level. Harris announced her support of the bill in a video...

...Senator Ron Wyden (D-OR) became the first Senator to cosponsor the Marijuana Justice Act last year, followed by Senator Kirsten Gillibrand (D-NY) in February, and Senator Bernie Sanders (I-VT) in April.

This was from 2018:

Wyden Bill to Require Paper Ballots, Strengthen Election Security Gains Support from Sanders, Harris, ACLU

Washington, D.C. – U.S. Sen. Ron Wyden, D-Ore., today announced the addition of Sens. Bernie Sanders, I-Vt., and Kamala Harris, D-Calif., as cosponsors to his bill to strengthen election security and require paper ballots, as well as an endorsement of the bill by the American Civil Liberties Union (ACLU).

None of the above were simply bills that a majority of Senate Democrats sponsored. Harris and Sanders have worked fairly well together in the Senate.