Roleset id: embroil.01 , involve in contention, Source: , vncls: , framnet: embroil.01: EMBROIL-V NOTES: I feel there's some sort of unstated "in controversy" in the secondexample. (from embroil.01-v)
Arg0-PAG: causer of contention, agent (rare)
Arg1-PPT: thing involved in contention
Example: normal usage
person: ns,  tense: past,  aspect: ns,  voice: passive,  form: participle
A majority of an NIH-appointed panel recommended late last year that the research continue under carefully controlled conditions, but [the issue]-1 became embroiled *trace*-1 in politics as anti-abortion groups continued to oppose federal funding.
Arg2: in politics
Argm-tmp: as anti-abortion groups continued to oppose federal funding
Example: agent, sorta
person: third,  tense: present,  aspect: perfect,  voice: active,  form: participle
The subsequent drive to reform Hong Kong's markets also has embroiled the interest-rate futures contract.
Arg0: The subsequent drive to reform Hong Kong's markets
Arg1: the interest-rate futures contract