evidence: Just hours after taking the oath of office, President Joe Biden signed nine executive orders – far surpassing every other president’s first day on the job in modern history. [...] Biden is not the first U.S. president to issue an executive order, and he certainly won’t be the last. My own research shows executive orders have been a mainstay in American politics – with limitations. [...] As he promised, Biden has already revoked numerous Trump executive orders and issued new ones on some big agenda items. He’ll likely issue more: for example, to tackle racial injustice and student debt.