Clinton reaches for Pa. win; Obama says he'll be close
(Agencies)
Updated: 2008-04-22 08:06
![](../../images/attachement/jpg/site1/20080422/0013729e4ad9097772d045.jpg)
US Senator Hillary Clinton (D-NY) gives the thumbs up to a crowd of supporters in Market Square in downtown Pittsburgh, Pennsylvania on April 21, 2008. [Agencies]
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