Rasmussen Reports issues a poll showing McCain vulnerable to a Ralph Nader-type challenge from the libertarian Right:
A separate survey found slightly different results when third-party candidates were mentioned by name. In a four-way race, Obama earns 42% of the vote, McCain 38%, Bob Barr 6% and Ralph Nader 4%. Given those options, 11% were undecided. Barr and Nader were mentioned as candidates of the Libertarian Party and the Green Party respectively.
Barr picked up 7% of the Republican vote, 5% of the Democratic vote, and 5% of the unaffiliated vote. participants to choose between Barack Obama, John McCain and some other candidate.
Nader got 1% of the Republican vote, 3% of the Democratic vote, and 8% support from those not affiliated with either major party.
Rasmussen Reports does not typically include the names of minor third party candidates because early polls tend to dramatically overstate their ultimate level of support. However, it is occasionally useful to review the possibilities and explore what impact these candidates might have on determining the next resident of the White House.