All American girl (Cabot, Meg)(2002, paperback)

Sam Madison has always been totally ordinary. Apart from having two weird sisters, of course. But then she does something utterly out of the ordinary-she stops a crazy psycho from assassinating the American President.

Now Sam’s an instant, world-famous celebrity. Dining at the White Housr sure isn’t easy for someone who only eats hamburgers and lives in combat boots. In fact, there’s only one compensation-David, the President’s son……