[link|http://factcheck.org/article.aspx?docID=241|Yes, it's true]

Excerpt:

A Bush-Cheney '04 ad released Aug. 13 accuses Kerry of being absent
for 76% of the Senate Intelligence Committee's public hearings during
the time he served there. The Kerry campaign calls the ad "misleading,"
so we checked, and Bush is right.

Official records show Kerry not present for at least 76% of public
hearings held during his eight years on the panel, and possibly 78% (the
record of one hearing is ambiguous).

Kerry points out that most meetings of the Intelligence Committee are
closed and attendance records of those meetings aren't public, hinting
that his attendance might have been better at the non-public
proceedings. But Kerry could ask that his attendance records be made
public, and hasn't.

Aides also claimed repeatedly that Kerry had been vice chairman of the
intelligence committee, but that was Bob Kerrey of Nebraska, not John
Kerry.

[link|http://www.angelfire.com/ca3/marlowe/kerry.html#20040820b|Home link]