She's back and wearing leather. Tina Fey reprised her impression of Sarah Palin on “Saturday Night Live” while hosting the NBC sketch comedy show Saturday night. It was Fey's first performance as the former Alaska governor since her iconic impressions during the 2008 presidential campaign when Palin was the Republican vice presidential candidate. Fey appeared as Palin in a sketch introducing a mock “Sarah Palin Network,” satirizing Palin's entry into media. Palin recently launched the program “Real American Stories” on Fox News Channel and will soon begin production on “Sarah Palin's Alaska,” an eight-part series for TLC. Appearing as Palin in a leather jacket with an American flag pin, Fey introduced a lineup of shows like “Tea Party Wheel of Fortune” (the puzzle read “Obamar is a terrist”), “Are You Smarter than a Half-Term Governor?” and “30 Main Street,” a parody of her own “30 Rock.” Shortly before the 2008 election, Palin made a cameo appearance on “SNL” alongside Fey. Afterward, Palin said she had fun on the show and would do it again if asked. In her memoir, “Going Rogue,” Palin wrote that she grew up watching “SNL.”