DETROITBiden, Obama stump in MichiganThe Detroit NewsDemocratic presidential candidate former Vice President Joe Biden speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, which former President Barack Obama also attended.Andrew Harnik, APFormer President Barack Obama speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, also attended by Democratic presidential candidate former Vice President Joe Biden.Andrew Harnik, APA supporter watches as Democratic presidential candidate former Vice President Joe Biden and former President Barack Obama speak at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APYoung people listen as former President Barack Obama speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, also attended by Democratic presidential candidate former Vice President Joe Biden.Andrew Harnik, APThe Michigan state flag is visible as former President Barack Obama jogs back on stage to join Democratic presidential candidate former Vice President Joe Biden, left, at the end of a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APGov. Gretchen Whitmer, D-Mich., waved before Democratic presidential candidate former Vice President Joe Biden and former President Barack Obama speak at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APStevie Wonder speaks before he performs and before Democratic presidential candidate former Vice President Joe Biden and former President Barack Obama speak at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APGov. Gretchen Whitmer, D-Mich., speaks before Democratic presidential candidate former Vice President Joe Biden and former President Barack Obama speak at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APSupporters watch as Democratic presidential candidate former Vice President Joe Biden and former President Barack Obama speak at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020.Andrew Harnik, APFormer President Barack Obama speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, also attended by Democratic presidential candidate former Vice President Joe Biden.Andrew Harnik, APFormer President Barack Obama speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, also attended by Democratic presidential candidate former Vice President Joe Biden.Andrew Harnik, APDemocratic presidential candidate former Vice President Joe Biden speaks at a campaign rally, Saturday, Oct. 31, 2020, in Detroit. (AP Photo/Jose Juarez)Jose Juarez, Special To Detroit NewsSupporters listens as former President Barack Obama speaks at a rally at Belle Isle Casino in Detroit, Mich., Saturday, Oct. 31, 2020, also attended by Democratic presidential candidate former Vice President Joe Biden.Andrew Harnik, APFormer President Barack Obama addresses the crowd at a campaign rally for Democratic presidential candidate former Vice President Joe Biden, Saturday, Oct. 31, 2020, in Detroit.Jose Juarez, Special To Detroit NewsMichigan Senator Gary Peters addresses the crowd at a campaign rally for Democratic presidential candidate former Vice President Joe Biden, Saturday, Oct. 31, 2020, in Detroit.Jose Juarez, Special To Detroit NewsDemocratic presidential candidate former Vice President Joe Biden speaks at a campaign rally, Saturday, Oct. 31, 2020, in Detroit.Jose Juarez, Special To Detroit NewsBeverly Hills, Mich. residents Mirjam Gunter, front, and Jessica Damoiseaux decorate their vehicle with various signs to show their support of Democratic presidential candidate former Vice President Joe Biden at a campaign rally, Saturday, Oct. 31, 2020, in Detroit.Jose Juarez, Special To Detroit NewsPresident Barack Obama speaks to a socially distanced crowd at Flint's Northwestern High School during a rally for Democratic presidential candidate Joe Biden on Saturday, Oct. 31, 2020.Leonard N. Fleming / The Detroit News