Why not just pass a $15 minimum wage if that's the policy goal? Asking this question as a Democrat. US Senate Democrats don't have the power to do this. You do

Why not just pass a $15 minimum wage if that's the policy goal? Asking this question as a Democrat. US Senate Democrats don't have the power to do this. You do see this in local governments where they do (like NY). I might also wonder if this is the true policy goal nationally, or if they are just floating ideas out there to see the public opinion on them. e.g., If a $15/hr minimum wage isn't passable in their careers, maybe this would be and is a step in that direction. Additionally, saying something new like this gets their name in headlines, which tends to be a goal for national politicians (especially when not attached to a scandal).