Multiple people familiar with the matter confirm to ABC News that President Joe Biden is expected to sign an executive order on Monday that will lift the Pentagon’s ban on transgender people serving in the military. The controversial ban was announced by former President Donald Trump in 2017 through a tweet and reversed the Obama administration’s policy to allow open service by transgender people. New Defense Secretary Lloyd Austin will be on hand at the White House ceremony on Monday, where the executive order will be signed, said the individuals familiar with the matter. “The ban will be officially lifted tomorrow,” said one of the individuals familiar with the signing of the executive order.