combined 19 electoral votes, are known for independent-minded voters, she noted, enough of whom might be inclined to back a Libertarian instead of Romney. In Nevada, a CNN/ORC International poll last month showed Goode winning 4 % support and Johnson 3 %, with Obama holding a 47 % -44 % lead over Romney in the state. Based on 2008 turnout in Nevada, the support for Goode and Johnson would amount to about 67,000 votes. Republican National Committee Chairman Reince Priebus downplayed the impact of third-party candidates earlier this month, telling CNN that Johnson's candidacy was almost a non-factor. Could Obama's struggles with white voters cost him the election ? Voters are not going to throw their vote away when we have an election here that's about the future of America, Priebus said. I do n't see that happening. CNN polling shows that support for Obama and Romney changes little when third party candidates are factored into state races, said CNN Polling Director Keating Holland. In all states CNN has polled so far, the minor party candidates are getting no more than 4 % of the vote, and usually closer to 1 % -2 %, Holland said, noting that including them does n't change the margin between Obama and Romney. Statistically speaking, it's difficult to make the case that the minor party candidates are affecting the race. The influence of third party challengers has dropped