All that Dems understand is the instant gratification of winning an election by telling low-information voters what they want to hear, knowing that after election they can continue to party on citizens' money that they steal with unconstitutional federal taxes.
"Congress is not empowered to tax for those purposes which are within the exclusive province of the States."—Justice John Marshall, Gibbons v. Ogden, 1824.
Otherwise, Dems have no real vision for the future. This is evidenced by the fact that Dems win 17th Amendent-related votes on the promise of unconstitutional abortion funding, unthinkingly murdering future generations of unborn Democratic voters.
Their only vision for the future is to impeach Trump. They will keep at it until they damage him (they hope) to the point that the spineless Republicans will no longer support him.