Neither McGinniss nor his agent were available for comment Tuesday.
However, his publishing house, Broadway Books, released a statement.
It reads, in part: “McGinniss is the author of “Going to Extremes,” a classic book about Alaska, and his work-in-progress returns him to the 49th state to examine Sarah Palin’s significance as both a political and cultural phenomenon and as an embodiment of the contradictory forces that shaped Alaska as it moved into its second half-century of statehood.
“Well regarded for his in-depth, up-close reporting, Mr. McGinniss will be highly respectful of his subject’s privacy as he investigates her public activities,” the statement says.