The Democratic “super heavy hitters” are coming to bat for Elizabeth Warren as she enters the final stretch of her hotly contested Senate race with Republican U.S. Sen. Scott Brown, a popular late-game strategy pundits say is more about greasing the get-out-to-vote machine than wooing would-be undecideds.

“At this point, you’re not changing minds,” Northeastern University professor Alan Schroeder said yesterday as Warren trekked from Springfield to Auburn to Boston and Lawrence in a slew of pre-Election Day rallies. “You’re really just trying to get your supporters fired up, just get them to the polling place.”