PHOENIX _ Call it their fail-safe option.
If Joe Biden were to lose a critical Midwest battleground like Michigan or Wisconsin, Democrats are counting on Arizona to bail him out, acting as a potential replacement state with enough electoral power to prevent President Donald Trump's re-election.
After Trump carried this emerging swing state by just over 91,000 votes four years ago, some Republicans are now already bracing for a defeat that could "cut deeply down the ballot," as one GOP aide in state government put it.
