A new AARP poll shows Vice President Kamala Harris leading former President Donald Trump by 2 points in Pennsylvania with Trump holding an 8-point advantage among voters 50 and older. The poll also showed some close races down ballot for U.S. Senate, state treasurer and attorney general. Mail-in ballots are now available in Pennsylvania and polls are open from 7 a.m. to 8 p.m. on Nov. 5. According to AARP, Harris leads Trump 49% to 47% with 2% backing other candidates. Without minor-party candidates included, Harris led 50% to 47%. In the Senate race, Democrat Bob Casey leads Republican challenger...