Does "wired" mean nervous or connected in this title?

"British ambassador, now target of Trump’s ire, has D.C. wired"

The old fashioned idiom would be "on edge"

"British ambassador, now target of Trump’s ire, has D.C. "on edge"

Meaning excited (not in a nice way), nervous, anxious

wired adjective (EXCITED) informal (uk also wired up) nervous or excited, for example because of a future event, or because you have drunk coffee or taken drugs: Cambridge English Dictionary

I was totally wired before the interview.

I find that eating something can help if I'm too wired on caffeine.

Sometimes, for no apparent reason, all the children may become wired up.