Don't kid yourself. Republicans could be caught in a mass orgy on the House floor, and they'd still pull more votes than the sex-drugs-and-rock-n-roll Libertarians.
...sex-drugs-and-rock-n-roll...
SDR&R is not what the LP is about. Here's link to the LP platform.
http://www.lp.org/issues/platform/platform_print.html
sinkspur, you seem to be hung up on ending the war on drugs and legalized prostitution.
Here's a link to the Cato studies on the drug war.
http://www.cato.org/current/drug-war/index.html
As for Legalized prostitution or sex between consenting adults see
http://www.princeton.edu/~progrev/99-00/n1_bl.html