pence said

"On this day, you inspire confidence, that we will prevail against the invisible enemy."

this has got to refer to the spiritual battle that we are fighting and it seems these are indeed real entities that we cannot see but are our enemies - call them demons, spirits, devils, fallen angels, nephilim, aliens, or the thousands of other names they have throughout history in every place and every culture

they are real and we must - and will - prevail