26 IX 2018: Mortal sin or venial at Univ. of Notre Dame?

When Trump was elected, I immediately started wondering if the University of Notre Dame would be giving him an honorary degree at commencement. Well, this year the honoree was not Trump, but Mike Pence. So I’m now wondering: If giving an honorary degree to Trump would be a mortal sin, is giving an honorary degree to Pence a venial sin, or is it too a mortal sin?