With Arizona now mathematically impossible for Trump to win, the Biden campaign succeeded in all of its paths to victory:
First path was to block Trump from being able to accumulate 270 votes by flipping any one of Florida, Georgia or North Carolina.
He flipped Georgia.
Second path was to win the electoral college outright by rebuilding the so called blue wall and retaking Pennsylvania.
He took Wisconsin, Michigan and Pennsylvania.
Third was if Pennsylvania was lost then win Michigan, Wisconsin and flip Arizona and NE 2.
He flipped Arizona and NE 2 (special shout out to
@TreeFrogTrader on NE2. I know you know, you know I know.)
Anyway, a very successful campaign indeed.