Green group ties Lincoln, BP in final push for Halter

“It’s time to send big oil a message: On Tuesday, send Blanche Lincoln packing,” the ad continues.

The ad is part of what an LCV spokeswoman Kate Geller called a six-figure campaign that also includes e-mail and telephone outreach (but not automated “robo-calls,” she said).

Lincoln’s campaign could not immediately be reached for comment.

The winner of the runoff will face Rep. John BoozmanJohn BoozmanGOP senators avoid Trump questions on rigged election In denouncing Trump's misogyny, Republicans show their sexism A dozen senators call for crackdown on Chinese steel MORE (R-Ark.) in the general election.