>than I am a proponent of voting for them. I take issue with
>the Green and Libertarian parties cherry-picking every 4 years
>and then running symbolic presidential campaigns. I love
>Stein's platform (after all - it's virtually a carbon copy of
>the Sanders platform) - and think Johnson/Weld have presented
>some very important and insightful policy positions that need
>to be included in our political discourse - but if they are
>serious - they would be running candidates in mid-terms,
>down-ballot - all across the country instead of trying to hit
>the improbable lottery every 4 years.
>
>-->

Libertarian Party candidates in 2016: http://www.lp.org/candidates-16

23 candidates running for US Senate
122 candidates running for US House of Reps
599 candidates running nation-wide

Looks like they're actually running fewer candidates than usual this year, based on their 2015 and 2014 pages.

What you said might be true of the Green Party (not sure - I genuinely don't know), but the LP isn't really a once every four years kind of thing.