I will be applying to law school in the fall and I had a question as
to whether something would help my resume.  I would like to attend a
liberal Ivy league-caliber (Yale, Harvard, Duke) law school but I lean
to the right on most political issues.  I was wondering if starting a
blog with a rightward lean would boost my resume or if admission
counselors would discard me because of my politics or because blogs
are tacky on resumes?

Blogs are tacky.

GPA is more of an essence for the stated schools. Get three letters of
rec. from prominent, preferrably, law professors.

Top law schools rely on GPA + LSAT for about 90% of the screening.
They don't really care much about extra-curriculars, unless they are
fabulous and law/government-related (e.g., nation-wide head of the
College Republicans)

So: focus on the LSAT. That's the best thing to do.

Regards,

M.