aboard papal plane pope francis sunday advise u.s. catholics feel tear two imperfect candidates president study pray vote make sure follow conscience traditional freewheel in-flight news conference reporters plane return azerbaijan francis ask would counsel american faithful wisdom keep mind ask question describe difficult choice accord difficulties one difficulties pope say without name democrat hillary clinton republican donald trump pose question reporter make allusions clinton support abortion trump statements vilify migrants religious minorities political campaign never say word pope say people sovereign would say study proposals well pray choose conscience rest response stress want talk fictional situation francis appear say unite state among countries become politicize effectively lose call culture politics country two three four candidates satisfy everyone mean perhaps political life country become politicize much political culture say people say party party effectively clear thoughts basics proposals say last february return mexico pope ask u.s. catholics could vote someone trump view immigration particularly candidate promise build wall border mexico say person view christian trump strike back call pope comment disgraceful 'study pray vote pope tell americans ahead elections