It was probably the point of no return for Hillary, today, as much as any one will be, short of her withdrawing.
Obama picked up two more union endorsements, the steelworkers and communication workers. That hits right at the core of Hillary's constituency, arguably.
BHO also picked up four other supers, all Congressmen. AP is confirming the Obama campaign totals among supers.
His magic number falls to 12.5. Thirty-seven (37) with Florida and Michigan seated at 1/2 vote per delegate.