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Pennsylvania’s Senator Bob Casey weighs in on the presidential race in his state

Pennsylvania's Senator Bob Casey weighs in on the presidential race in his state

President Trump, Democratic presidential candidate Joe Biden and Americans from coast to coast are keeping a close eye on Pennsylvania, as the state works through a record number of mail-in ballots. Pennsylvania Democratic Senator Bob Casey joins CBSN's Lana Zak to discuss the race and what he think the outcome will be.