In what way?
Prime example: Green New Deal.
1) It is impossible in the given time frame. Not hard, impossible. We simply don't have viable storage technology on the needed scale in the pipeline and we don't go from nothing to massive deployment in her kind of timeframe. What she's doing:
I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on
2) The energy part of it has been tried on a much smaller scale. Reality: CO2 emissions went up. They ended up replacing nuke with fossil fuels because renewables couldn't do it.