Which lifeline will she use this time?

Tina Fey is expected to be back reprising her devastating impression of  Sarah Palin on Saturday Night Live this weekend following the Alaska Governor’s performance in Thursday’s widely-watched vice presidential debate.

Actress and singer Queen Latifah has also been tapped to play journalist Gwen Ifill, who moderated the debate between Republican Palin and Democratic vice presidential candidate Joe Biden, celebrity Web site TMZ.com reported on Friday.

It will be the third time that Fey has skewered the self-described hockey mom on SNL, which has seen its ratings soar thanks largely to the Emmy-award winning “30 Rock” actress’s uncanny resemblance to Palin.

Fey’s Palin skits have racked up more than five million viewings on the official SNL website alone, and hundreds of thousands more have watched on YouTube in the last three weeks.

After Fey/Palin asked last week whether she could “phone a friend” while struggling in her interview with journalist Katie Couric/Amy Poehler, which lifeline might Fey/Palin use this time?

Ask the audience, maybe?