Obama received a double-digit bounce compared to August 2010 on his handling of both the wars in Iraq and on terrorism.

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The Durham paceman's post-lunch spell reaped a double breakthrough when extra bounce unsettled Leon Johnson and a fortuitous lbw decision accounted for home captain Darren Sammy.

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This last tier will either be a single or double based on if the market was able to bounce to 1090-1100.

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And though Bush is not doing as well as recent winning incumbent presidents at this point (Nixon, Reagan and Clinton had double-digit leads in late August), the president may still get a post-convention bounce.

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