It's become increasingly likely that the Unions will support the Green candidate. While that probably doesn't mean anything in most states, in the 2008 elections, the Green candidate Rebekah Kennedy won 20.5% of the vote against Pryor.
Only when there's no Republican running. Look at where Kennedy did her best: in the most intensely, partisanly Republican areas of the state. There are just a fair number of very partisan Republicans in Arkansas who would rather vote for a Green (who stands no chance at winning) than a Democrat.
