Barack is now within mathematical reach of the Democratic nomination by June 3rd with the latest wave of superdelegate endorsments -- even if he loses the remaining six primary contests.

That's big. Sen. Obama has picked up 26 endorsments in the past week and Hillary's last chance is to include Michigan and Florida into the race, the states which violated national party rules.

Now it is time for Sen. Clinton to exit the race gracefully and join the camp Obama to have a Democratic aministration after eight years.