Yukon Party MLA and cabinet minister Patrick Rouble says he will not run again in the next territorial election.
A two-term MLA, Rouble has represented the Southern Lakes riding since 2002 and has been in cabinet since 2006. He is currently minister of education and energy, mines and resources.
Rouble said he is leaving territorial politics so that he can pursue a doctorate degree in education from the University of Calgary.
"I didn't get involved in politics to be a career politician. I got involved in politics to help make a change and get the territory back on the right track," he told CBC News on Wednesday.
"I think we're heading in that direction, and now it's time for me personally to make a change."
Rouble said his departure has nothing to do with new Yukon Party Leader Darrell Pasloski, who officially replaced Dennis Fentie as premier over the weekend.
"I've got the utmost faith in the new regime. This is an issue that I've been looking at for a number of years now," he said.
Election expected by this fall
As premier, Pasloski must call a territorial election by this fall, when the Yukon Party's current mandate expires.
Earlier this week, Yukon Party president Mike Nixon announced he is leaving that post to seek the party's nomination in the Porter Creek South riding in Whitehorse.
Nixon had been elected party president just last month, at the party's annual convention.
Vice-president Jonas Smith will take over as president, according to the party.
Meanwhile, two people are vying for the NDP candidacy in Riverdale South, another Whitehorse riding.
Former city councillor Jan Stick and Boys and Girls Club executive director David Blottner both announced their intentions to seek the party's nomination on Monday.