Foreign interests? Domestic interests? I struggle to see the difference when it's all said and done. In either case the spirit of the republic is spat on. In either case, We The People get some perverted version of a gov said to be: of the people, by the people, for the people.
Death is still death whether by foreign cancer of domestic cancer.
If you trust (e.g.) Wall Street more than you trust (e.g.) The Russians then I have a bridge you might be interested in. Given their presumed loyalty - but ultimately the lack there of - the former's violations are relatively worse.
It would be blocked. Just last month for example the administration blocked Singapore-based Broadcom from a takeover bid of Qualcomm on national security grounds.
Not a fan of any of these folks, but if Trump is willing to do a USPS audit pony show just because he's in a kerfuffle with Amazon's WaPo, an international takeover of a large media conglomerate is highly unlikely.
While blocking large foreign buyouts is probably a win for the US I still wouldn't trust the admin to do so reliably. Just throw a few hundred bucks their way.