Any Poll showing Obama at or above 45% is flat out lying, or completely bad math.
The guy is looking at a McGovern/Mondale/Carter type disaster, and short of a major political shift between now and election day, he is going to lose, and lose by a margin no sitting president in the modern age has lost by in a 2 person race.
Low 40s is the BEST this guy can possibly pull off.
Barring some truly Earth-shifting event(s), Obama’s done. He knows it and his supporters know it.