President Obama, seeking a Republican agreement to raise the nation's $14.3 trillion debt ceiling by Aug 2, will not insist that any deal include an end of President Bush's controversial tax rates on the wealthy. Obama's tactics are coming into clearer focus: they involve seeking higher taxes not on a broad swath of high income earners but on a narrower band of the super rich, such as owners of private jets. This means that those who earn $250,000 have got a reprieve.