I think Romney got dominioned in Ohio and Florida in ‘12.
This is no defense of Romney. He’s a corrupt globalists. But I still think he won in 2012 and had it stolen from him, or at least in Florida. I live in Florida and can tell you that at least in my area, there were Romney yard signs all over the place with few Obama ones - unless you went into poorer neighborhoods.
Granted that I live in an area that trends Republican but, at least using yard signs and bumper stickers as an indicator, it was even more lopsided in Romney’s favor than it was for Trump in 2020, and probably even 2016.