Some have tried arguing that S&Ps rating change was warranted due to inflation risk, but that's bunk too. The US experienced actual high inflation in the 1970s, and the dollar weakened then, yet the US was not downgraded by any of the ratings agencies.
The S&P downgrade looks to be politically motivated. The President had several routes by which he could have circumvented the debt ceiling restriction and almost certainly would have used one of them if the debt celling talks had dragged on so long that it became difficult to make interest payments out of tax receipts. McGraw Hill, which owns S&P, is headed by Terry McGraw, a prominent figure in the Business Roundtable, which has stated that it wants Social Security privatized.
так-то