At the 1987 election, the CLP faced a challenge from the Northern Territory Nationals, a rebel conservative party led by former CLP Chief Minister Ian Tuxworth that was aligned with then-Queensland Premier Joh Bjelke-Petersen, but not affiliated with the federal National Party of Australia.

The NT Nationals took 17.79% of the primary vote, mostly from the CLP, but finished with only one member in the assembly.

Former Chief Minister Ian Tuxworth was also re-elected as a member of the NT Nationals.

Ian Tuxworth's election to the seat of Barkly was declared void after independent candidate Maggie Hickey challenged the result on the basis that the Labor candidate, Keith Hallet, held British nationality and was not an Australian citizen.

Given a uniform swing to the opposition or government parties, the number of seats that change hands can be predicted.