If one recent poll is correct, the answer could be yes:
A new poll shows Libertarian Party presidential candidate Bob Barr winning 5 percent of the vote in Virginia.
That could be bad news for the Republican candidate, Sen. John McCain. The Zogby International Poll in battleground states shows Democrat Sen. Barack Obama leading McCain 43 percent to 41 percent in Virginia. The poll in 10 battleground states was taken Aug. 15-19.
The link to the poll itself can be found here.

