One of President Donald Trump's executive orders offers a new federal government definition of the sexes that could have a major impact on transgender people.

On his first day in office, President Donald Trump issued executive orders that transgender rights activists described as "hateful." Invoking biological definitions of sex that are contested, one order effectively argues that "trans-ness is not real,

Within hours of his inauguration, President Donald Trump issued an executive order suspending the enforcement of a TikTok ban that had taken effect the previous day. The move tossed a lifeline to TikTok -- and its 170 million users in the United States.

An executive order is an instruction from the president which has the weight of the law behind it. But Trump's order does not overturn the ban. Instead it tells the US attorney general not to enforce the law for now - something experts had expected would be his first move.