The Australian | North Sydney preselection: Trent Zimmerman wins Liberal Party vote The Australian Trent Zimmerman was an adviser to Joe Hockey during the Howard government and in opposition. One of Joe Hockey's former advisers has clinched a Liberal Party vote to replace his former boss in parliament amid infighting over how he won the ballot. Race to succeed Joe Hockey in North Sydney 'a stitch-up' Trent Zimmerman preselected for Joe Hockey's safe Liberal seat of North Sydney Zimmerman wins North Sydney preselection |