It's pretty sad the Senate is going to confirm Hegseth.
The GOP controls the presidency, so one would presume a pretty hawkish Sec Def, maybe some random pushback on various cultural initiatives. Might not be what I would prefer "exactly", but frankly Sec Def isn't exactly an office mostly shaped by what we consider partisan theory, like say maybe Transportation.
Transportation in a GOP administration might prioritize more money for highways, reduce subsidy for electric cars (modulo vice president Musk), and less for bike/ped projects, subways, prefer freight rail to passenger, etc... There is a reasonably clear differentiation in priority.
Sec Def is pretty straightforward. You want someone who has been a high level manager in the Defense Dept or a civilian Defense contractor, who has experience running a monster size organization.
Hegseth is a lightweight.
Kaine had a pretty good line of questioning, regarding the assault allegations in Monterey. Hegseth kept going back to "never charged"/etc... but he did do a settlement and he said it was a "shakedown". Kaine said "so you were blackmailed" and Hegseth tried to wobble away from it. The Secretary of Defense should not be someone who puts themselves into a position to have a "shake down" happen.
I'm even less concerned about RFK. If he starts a program to eliminate measles vaccines requirements for public school, that's bad policy in my opinion, but Trump won the election so they get to pick the policies. I don't like the pick but I'm hard pressed to just say he's flat out incompetent.
Sec Def is not a policy position. It's an experience position. Bad pick.