Several legislators have proposed fixes (some more effective than others) for some of the problems with electronic voting systems. Note that, as of this posting, these bills have not yet passed into law.
Voter Confidence and Increased Accessibility Act of 2003, HR 2239 (proposed)
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text copy
Info from its sponsor, Rep. Rush Holt:
USACM support for HR 2239:
CVV support for HR 2239:
Voter Verification Act (proposed)
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Info from its sponsor, Sen. Bob Graham:
(XXX add Hillary Clinton's bill)
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Also see