Trump has TikTok deal “on his desk”

What we know: U.S. presidents don't typically have approval or veto power over merger agreements. But this situation is different because of the involvement of the Committee on Foreign Investment in the U.S. (CFIUS), which has been reviewing ByteDance's 2017 acquisition of U.S. app Musical.ly and eventually merged with TikTok.

What we don't know: It is unclear whether the Microsoft offer involves participation in ByteDance from U.S.-based venture capital investors, some of which reportedly have had interest in helping carve 0ut TikTok.

• It also remains uncertain exactly what Trump's "ban" threat entails, or under what legal argument he'd block a Microsoft acquisition.

My thought bubble: Microsoft was not among the Big Tech companies called to testify earlier this week in front of a House committee focused on antitrust, thus perhaps giving it more acquisition flexibility than a more natural TikTok owner like Facebook or Google.