Maine Democrat Graham Platner announced Wednesday that he is "suspending campaign operations" for his Senate bid. Platner indicated that he intends to withdraw from the race — but said the process to replace him "needs to be driven not from back rooms, but by the will of the people." Why it matters: His apparent departure — following a sexual assault allegation that he denies — leaves Democrats in chaos. Maine is one of the most critical midterm races in the country, complicating their already