Judge worries about proposal to limit Republican internees (9)

'judge worries' is the definition.
Although both the answer and definition are plural nouns, I can't see how they can define each other.

'about proposal to limit republican internees' is the wordplay.
'about' indicates putting letters inside.
'proposal' becomes 'bid' (a bid is a proposal or offer).
'to limit' indicates putting letters inside (outside letters limit or restrain others).
'republican' becomes 'R' (abbreviation in US politics).
'internees' becomes 'jails' (I can't justify this - if you can you should give a lot more credence to this answer).
'bid' going around 'r' is 'bird'.
'bird' put within 'jails' is 'JAILBIRDS'.

Can you help me to learn more?