Magic bullet. Then there's the National Rifle Association. National Review turned up Kagan notes from her Clinton days in which she listed the NRA and the Ku Klux Klan as "bad guy orgs." Conservatives are howling that she saw an equivalence between the gun group and the hate group. Kagan allies say that context (the administration was looking at how a liability bill could affect various nonprofits) shows the pairing was coincidental. Probably she explains this in her hearings before it becomes a cutting issue. But three years of Democratic control of Congress have proven the NRA to be perhaps the most powerful lobby on the Hill (see D.C. voting rights, for example). Were they to engage on the Kagan nomination, things could get interesting fast.
Corrected on : Corrected 6/28/10: An earlier version of this article incorrectly spelled retiring Justice John Paul Stevens's name.