US
Biden's shaky debate performance raised doubts among allies about his stamina and sparked a party backlash.
Before Biden exited the race and endorsed Harris, Reuters consulted experts to understand next steps.
Analysts believe a Harris presidency would align closely with Biden's on key global priorities.
Many Democrats quickly backed Harris for president after Biden's exit, but key figures like Nancy Pelosi stayed quiet.
Trump campaign sources say they'll label Harris, as the "co-pilot" of unpopular policies.
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