Microsoft is the leading suitor to potentially take over short-form video app TikTok as the Trump administration considers sidelining its Chinese parent company, according to a person familiar with the talks, the latest sign of the administration’s increasingly strident stance on China and its tech companies.President Donald Trump is considering signing an order forcing China’s ByteDance to sell off the U.S. portion of TikTok over national security concerns, according to people familiar with the talks, who spoke on the condition of anonymity because they were not authorized to discuss it publicly. One of the individuals confirmed Microsoft was in the lead to acquire the popular platform’s U.S. service.While the order was originally expected to be signed Friday, it could still fall through, the people warned. The president was also considering other approaches, including designating TikTok under an executive order that allows the president to exclude national security threats from U.S. networks.