posted 12:48 pm Sat April 19, 2008 – WEST CHESTER, Pa. Stay on top of breaking news! Sign up for ABC 7 News e-mail alerts. It’s the final weekend before Pennsylvania’s pivotal Democratic primary and the presidential candidates are in full motion, one of them on a train.In Philadelphia, Barack Obama ( web | news | bio ) clambered aboard a shiny royal blue train car Saturday morning for a daylong …
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