Opinion: Eric Schneiderman/Steve Bullock 2020?
Eric Schneiderman is the Attorney General of the State of New York. This is the guy who took down Trump's fake college. He is very strong against fraud, he's pro-choice...and he's quite handsome.
Steve Bullock is the current governor of Montana. He works well with both Democrats and Republicans. He's anti-Citizens United, a trustbuster, and with him on the ticket the GOP's standard "he's going to take away your guns!" attack on Democrats no longer works. When faced with a very large state budget surplus, he chose to return some of it to the people as rebates rather than tax cuts - and returned an amount that left the state with a surplus. (A tax cut will come back to bite you: it's impossible to reel the damn things back even if the government goes broke because of them. A rebate is different: you issue the checks, you're done, everyone's happy and there's no significant impact on future budgeting.)