RE: If he came out against pot legalization and queer marriage his support would drop to zero.
He already has a public stance on gay marriage.
See here:
http://www.ontheissues.org/senate/Rand_Paul.htm
Rand Paul on gay marriage — No national law on same-sex marriage; leave it to states. (May 2013)
He also made a public pronouncement on drug use.
http://www.ontheissues.org/domestic/Rand_Paul_Drugs.htm
Drug abuse isn’t a pressing issue; 10-20 years is too harsh.
He already has a public stance on gay marriage.
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Really? So if legalizing gay marriage was on the ballot in Kentucky, which way would Rand Paul vote?