Is it "theirs" to withhold communion or her responsibility to repent or not to partake? Even though there are degrees of sin and evil, those degrees are still sin and evil. All of us are guilty, but some are still self-righteous.
Would I be incorrect in stating you are a Roman Catholic? If you are Roman Catholic then you should know the Vatican Court decided that Nancy Pelosi should not be given communion based on her public pro-abortion stance:
http://www.washingtontimes.com/news/2013/sep/24/vatican-court-head-no-communion-nancy-pelosi/