Few politicians actually put out a platform these days. The ones from the two major parties (has anyone noticed one of them calls it a "brand" now?) in the US don't; for example, see Clinton's recent answer about approving the pipeline, or Trump's recent answer about whether Obama was born in the USA.
The few that do are usually one-issue candidates. Even if someone does publish a full platform, it's unlikely they're going to put out an opinion on every single law out there, even if they know it's somewhat controversial.