A search of the site will show that from time to time the political aspects of NASA (a US government agency) or the Space Exploration aspects of politicians have been considered on-topic in this site. I've summarized some examples in these three comments (1, 2, 3).
Below is a screen shot from a Fox News clip NASA explains need for protecting US assets in space; NASA administrator explains the purpose of President Trump's proposed Space Force. dated Aug. 10, 2018 - 4:54.
As these are unprecedented times for an unprecedented administration, this might be yet another consistent surprise. NASA directer Jim Bridenstine is perhaps an unprecedented NASA administrator, with a background in rocket racing and politics rather than science or engineering. (see also Rocket Racing League (1, 2, 3, 4)).
Question: Has a NASA administrator ever explained US military initiatives in Space to the press before this? It could be either a proposed initiatives, or an actual one.