Tatan Syuflana/AP/file

The nomination of a police chief under investigation for corruption has ensnared President Joko Widodo in a row between rival government agencies. His alliance with former President Megawati is now in the spotlight.

JAKARTA, INDONESIA — By nominating a tarnished cop as his police chief, Indonesian President Joko Widodo has triggered a feud between reformists bent on cleaning up the country’s endemic graft and an entitled elite with tentacles in virtually all public institutions.