Myles and McIntyre were opponents of the economic reforms (dubbed "Ruthanasia") promoted by Minister of Finance Ruth Richardson, believing that they were harmful to society.
As a result of their objections, Myles and McIntyre fell out with their National Party colleagues, and eventually decided to break away.
[4] Although the Alliance was considerably more left-wing than the Liberals, it was emerging as the most significant political group to oppose Ruth Richardson's policies — the leader of the Alliance, Jim Anderton, had quit his own Labour Party out of opposition to Roger Douglas, an ideological ally of Richardson.
In the end, Myles (along with party president Malcolm Wright and central regional chairman Trevor Jans) opted to leave the Liberals and join New Zealand First.
[6] MacIntyre remained with the Liberals for some time afterwards but he was defeated in 1993 and did not enter Parliament again and following the 1996 election where he was a list candidate for the Alliance, he then retired from politics becoming a company director.
[7] Grover himself eventually rejected the Alliance, and shortly before the 1999 election, defected to the Christian Heritage Party, giving it its first seat in Parliament.