HUGO GREENHALGH AS Joe Biden began his first full day as U.S. president-elect, a group of transgender military aspirants and campaign groups insisted that one of his first priorities must be to overturn a ban on new transgender personnel serving in the U.S. military. Biden captured the presidency on Saturday as voters narrowly rebuffed Republican incumbent Donald Trump's tumultuous leadership and embraced his promise to fight the coronavirus pandemic and fix the economy in a divided nation. Former Democrat President Barack Obama in 2016 allowed trans people to serve openly and receive medical care to transition genders, but in April…