George Bush created a political storm yesterday by intervening to stop the disgraced White House aide, Lewis “Scooter” Libby, from going to jail. The president, in a statement, said the prison sentence imposed on Mr Libby, who was found guilty of perjury in a complex spy case linked to the Iraq war, was too harsh.Mr Bush, who made the statement after leaving a summit with the Russian president, Vladimir Putin, at Kennebunkport, Maine, said: “I respect the jury’s verdict. But I have concluded that the prison sentence is excessive.”