In 1985, Kroger briefed Alan Goldberg QC to lead junior barrister and future federal Treasurer Peter Costello to represent Confectionery Manufacturers of Australia in the Dollar Sweets case.

He instituted a series of reforms, including a move to increase the power of the party executive in pre-selections.

[14] Now no longer active in day-to-day party politics, Kroger frequently appears on Sky News Australia.

[15] Kroger advised John Pesutto Liberal Victorian Opposition leader in the expulsion of Moira Deeming.

[16] A self-described "power broker",[17] Kroger is considered a divisive member of the Victorian Liberal Party,[18] and has been criticised by former Premiers Jeff Kennett and Ted Baillieu as such.