We'll start at the beginning, and Troopergate. The key issue is whether she used her state office to pressure the public safety commissioner to fire her ex-brother-in-law. Here's what she stated on the record in mid-July if this year:
"To allege that I, or any member of my family . . . directed disciplinary action be taken against any employee of the Department of Public Safety, is, quite simply, outrageous," Palin said in a statement in mid-July after Monegan's dismissal.
She lied. Here's Wikipedia's account, with links to the original sources proving her lie:
In July, Palin's ethics advisor urged her to apologize for "overreaching or perceived overreaching" to get Wooten fired. Palin publicly acknowledged in August that "pressure could have been perceived to exist, although I have only now become aware of it," She also apologized to Alaskans for the distraction.
On August 13, after an internal investigation, Palin acknowledged that her staff had contacted Monegan or his staff about two dozen times regarding Wooten.
She's a liar.