WoofersInc, if the donations are actually going to the Brady Campaign--which, as far as I know, is a 501(c)(4) organization--they are not deductible. Contributions to 501(c)(4) orgs are only deductible if they're volunteer fire departments, or veterans' organizations with at least 90% of the membership composed of veterans.
At least, that's what Wikipedia tol' me.
However, these donations are not to the Brady Campaign, which has been fined in the past by the FEC for claiming no political expenditures. These donations are going to the "Brady Gun Law Defense Fund," which is probably a 501(c)(3) organization.