No, this isn't about her campaigning for John McCain. It's about Palin saying to Tea Partiers in Nevada, "Don't Retreat, instead Reload!" She accompanied it with a map that included "targets" of Democrats to defeat. She clarified later in speeches that she didn't mean it literally (duh! who thought she was telling people to actually shoot members of Congress???). So now Democrats are making a huge deal about it.
Well, they were strangely silent when AZ Democrat Rep. Harry Mitchell, then a candidate, ran a TV ad showing then incumbent Representative JD Hayworth in gunsite cross-hairs.
Kudos to espressopundit.com for originally noticing this ad several years ago.