Florida
Biden +3.6 in 538 poll average, +2.3 in RCP, and hasn't trailed in either since April.
Arizona
Biden +4.4 in 538 poll average, +3.4 in RCP, and hasn't trailed in either since March.
North Carolina
Biden +2.0 in 538 poll average, +1.2 in RCP, trailed some in RCP in May and August.