Kubby was a contender to be the Libertarian Party's vice presidential candidate in the 2000 election. The Libertarian Party requires the vice presidential candidate to be nominated by the delegates just as the presidential candidate is selected. Kubby was opposed by fellow Californian Art Olivier, and by Ken Krawchuk of Pennsylvania. After no candidate received a majority on the first ballot, Krawchuk withdrew his name from the ballot and endorsed Olivier, who then defeated Kubby by a vote of 418 to 338.