The interpretation and implementation of Canon 915, which states that those "who obstinately persist in manifest grave sin, are not to be admitted to holy communion" is frequently discussed and not sufficiently frequently implemented. Dr Peters is interviewed by email by CNS News. According to CNS,
In receiving communion at a Mass offered by the Roman Catholic bishop of Albany, NY, that state’s governor, Andrew Cuomo, who supports abortion, gay marriage, and lives with his girlfriend, committed an “objectively sacreligious” act that “produces grave scandal,” according to Dr. Edward Peters, a top expert in Catholic Church law and a consultant to the highest court at the Vatican.Read the whole article for a further understanding of Dr Peters' coherent reasoning. Dr Peters
Peters specifically cited Cuomo's cohabiting with Food Network hostess Sandra Lee as "publicly acting in violation of a fundamental moral expectation of the Church," and that "as long as he persists in such conduct, he should refrain from taking holy Communion" and "if he approaches for holy Communion, he should be denied the august sacrament in accord with Canon 915."
was appointed by Pope Benedict XVI last year as a referendarius (consultant) to the Apostolic Signatura, the Church’s highest administrative tribunal, itself subject only to the Pope and under the direction of Cardinal Raymond Burke, the archbishop emeritus of St. Louis, Mo.
It was the then Bishop Burke who, as bishop of La Cross, issued the Notification concerning Senator John Kerry that, in accordance with Can. 915, he should be denied Holy Communion.
Dr Peters had already written on Governor Cuomo and Communion on his blog last month.
Note that the obligation falls upon the minister of Holy Communion not to admit the person to Holy Communion should the person approach.