That would be petty silly. The last thing Democrats need is to act out of spite -- we have enough of that from Republicans.
There are other ways of getting money into the pockets of those who most need it. The minimum wage is one and has an appeal because it appears simple. Direct cash payouts independent of employment could make more sense because it interferes less with the labor market and doesn't tell states what they must do.
The $15 per hour is perhaps a fixation to get off