This from Fitch Ratings, probably not surprising, that they will review the U.S. debt rating if the debt ceiling is not raised

  • Fitch reiterated that prioritizing payments may not be compatible with a Triple-A rating
  • And, a government shutdown would not have a direct impact on the AAA rating but would "highlight how political divisions pose challenges to the budgetary process"

That's via DJ/Market Watch, link here for more

And, more again at Reuters here