PENNSYLVANIAThe presidents stump for candidates in Keystone StateAssociated PressFormer President Barrack Obama, foreground center, greets the crowd after speaking during a campaign rally in support of Pennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, APFormer President Barrack Obama, left, finishes his remarks and welcomes Pennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, to the stage during a campaign rally in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, APThis combination of photos shows Pennsylvania Democratic gubernatorial candidate state Attorney General Josh Shapiro on June 29, 2022, in Philadelphia, left, and Pennsylvania Republican gubernatorial candidate Doug Mastriano on Sept. 29, 2022, in Erie, Pa., right. (AP Photo)APMehmet Oz, a Republican candidate for U.S. Senate in Pennsylvania, speaks at a campaign stop, Friday, Nov. 4, 2022, in Wexford, Pa. (AP Photo/Keith Srakocic)Keith Srakocic, APPennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, center, and his wife Gisele, left, are introduced by former President Barrack Obama at the conclusion of his remarks during a campaign rally in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, APPresident Joe Biden speaks about his administration's plans to lower prescription drug costs and protect Social Security and Medicare, Saturday, Nov. 5, 2022, at Jones Elementary School in Joliet, Ill. (AP Photo/Patrick Semansky)Patrick Semansky, APPresident Joe Biden speaks about his administration's plans to lower prescription drug costs and protect Social Security and Medicare, Saturday, Nov. 5, 2022, at Jones Elementary School in Joliet, Ill. (AP Photo/Paul Beaty)Paul Beaty, APPresident Joe Biden boards Air Force One at O'Hare International Airport in Chicago, Saturday, Nov. 5, 2022. Biden is en route to Philadelphia to campaign for Pennsylvania's Democratic gubernatorial candidate Josh Shapiro and Democratic Senate candidate Lt. Gov. John Fetterman. (AP Photo/Patrick Semansky)Patrick Semansky, APFormer President Barrack Obama, left, is introduced during a campaign rally in support of Pennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, APPennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, speaks during a campaign rally attended by former President Barrack Obama in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, APA President Joe Biden supporter talks with other supporters before President Joe Biden arrives to speak Saturday, Nov. 5, 2022, at Jones Elementary School in Joliet, Ill. (AP Photo/Paul Beaty)Paul Beaty, APFormer President Barrack Obama speaks during a campaign rally in support of Pennsylvania Lt. Gov. John Fetterman, a Democratic candidate for U.S. Senate, in Pittsburgh, Saturday, Nov. 5, 2022. (AP Photo/Gene J. Puskar)Gene J. Puskar, AP