Sarah Palin's resignation gives Republicans a new opportunity to see her plain—to review the bidding, see her strengths, acknowledge her limits, and let go of her drama. It is an opportunity they should take. They mean to rebuild a great party. They need to do it on solid ground.

Her history does not need to be rehearsed at any length. Ten months ago she was embraced with friendliness by her party. The left and the media immediately overplayed their hand, with attacks on her children. The party rallied round, as a party...