Father Frank Pavone, who heads the group Priests for Life, has been hard at work in radio interviews and event appearances trying to convince Catholic voters to overcome their qualms and support Donald Trump in the presidential election simply because he opposes abortion rights while Hillary Clinton supports them.

This has led Pavone to make some interesting leaps of logic, such as telling one radio caller who worried about Trump’s decidedly un-Catholic stances on issues like nuclear war and war crimes that a possible nuclear war under Trump was less of a concern than the definite continuation of legal abortion under Clinton.

Pavone confronted these issues again in an appearance on Tuesday on the Catholic radio network Relevant Radio, when host Drew Mariani asked him about Tim Kaine’s recent prediction that the Catholic Church will eventually change its position on marriage equality. (Mariani mistakenly said that Kaine also predicted that the Church will change its stance on abortion; Kaine, who is pro-choice, has long discussed his personal “faith-based opposition” to abortion.)

The Democratic vice presidential nominee, Pavone said, “represents a brand of thinking” among some Catholics who talk about social justice issues like “poverty, immigration, war and peace, homelessness, health care” when really abortion is “a more important and weighty issue than all these other issues” and it is “more important that someone be right on abortion than they be right on these other issues.”

In fact, he said, “you cannot be right on these other issues if you are wrong on abortion.”