This evidence is very, very close, but no cigar, without a direct tie to Kagan’s keyboard. However, it certainly fills the bill for “reasonable question” enough to impose recusal. The AG holds the stinger and won’t let go.
Like this one?
Another email chain on March 21, 2010, entitled Health care litigation meeting, references an internal government meeting regarding the expected litigation. Kagan is both author and recipient in the chain.