I’ve long been a proponent of more Democrats (Howard Dean’s 50 state strategy)
I find myself wanting to restate a certain point these days. Yes, Dean's strategy was about empowering state and local parties to bring the fight everywhere, but it was less about fighting everywhere and more about empowering locals to fight everywhere.
The party organizations (without Dean) basically do fight everywhere! Not necessarily in every single congressional district, but they dump lots of money into red state senate races and reddish districts.
The 50 state strategy was more about taking control away from the DC party organizations, to take the money out of Washington, taking the power (and filthy lucre) away from the corrupt and stupid DC consultant class.
It wasn't about fighting everywhere, it was about not running all of those fights from DC.