After months of declining job-approval poll results, George W. Bush seems to be turning around his presidency with the help of good news. Less than five months before the midterm elections, several key events have joined to lift Mr. Bush's approval polls to nearly 40 percent (up from 31 percent in May) and fewer Americans now think his decision to go into Iraq was a mistake. The Gallup Poll says 48 percent now believe the U.S. will win the war in Iraq, up from 39 percent in April. Among these linchpin developments: