National Review has assembled a symposium of critiques and responses to today's speech by Barack Obama. The symposium's participants share the assesment that Obama came up short today. Perhaps the most hard-hitting evaluation comes from Alvin S. Felzenberg:

Today we may have witnessed the beginning of the end of Barack Obama’s once-stunning campaign for the presidency. Not for the first time, the Illinois senator demonstrated, for all to see, that he is not qualified to serve as the nation’s president — at least, to paraphrase Mr. Obama, “not this time.”

See the full assesment here.