He was a National Party member of the Queensland Legislative Assembly from April to September 2006, representing the electorate of Gaven.
He resigned from the Palmer United Party in August 2014 and again sat as an independent for the final months of his term, but was defeated at the 2015 state election.
[3] In April 2006, Douglas was elected to the Legislative Assembly of Queensland in a by-election for the previously Labor-held seat of Gaven, representing the National Party.
On this occasion, Douglas, running under the banner of the newly formed Liberal National Party, narrowly emerged as the victor, reclaiming his old seat of Gaven.
[7] Douglas resigned as leader in August 2014 to protest against his lack of involvement in the preselection of candidates for the 2015 Queensland state election.