"We decided to stop the mediation and hold the president fully responsible," the statement said.
Obama made his "This year we will bring America's longest war to a responsible end" statement in the White House Rose Garden, on television, six months ago.
"We will continue to make clarifications regarding untrue reports by The New York Times, and reserve the right to hold it legally responsible," the statement said.
Mr. Valeriani, a longtime company executive, will have responsibility for businesses previously managed by Mr. Dormer as well as those for which he is already responsible, the statement said.
Both bloggers and advertisers are responsible for statements made.
Under Russian law, she said, people cannot be held criminally responsible for statements they believed to be accurate, even if factually false.
In its review of the 1934 season, Wisden commented: "No greater disservice was ever done to English cricket than when Larwood was induced to dash into print and become responsible for statements which put him beyond the pale of being selected for England".
For each of the denominations or groups, I have included information on their stance on evolution or creationism/intelligent design, usually in the form of publicly available statements and the dates of those statements, key phrases from those statements, and (in some cases) the name of the person responsible for the statement.
