Here is a link to a short comparison of some of the policy issues covered in the 2012 Republican Party Platform and Democrat Party Platform. Here is a link to a more comprehensive comparison.)
The current 2016 Republican Party Platform is here.
From the Preamble to the Platform: “This platform is many things: A handbook for returning decision-making to the people. A guide to the constitutional rights of every American. And a manual for the kind of sustained growth that will bring opportunity to all those on the sidelines of our society.”
A side-by-side issues analysis of the current 2016 Republican and Democrat party platforms created by the Family Research Council Action organization is here.