Sort of goes to your other post on inerrancy. Luke wrote his book based on collecting information from eye witnesses and other sources (perhaps Mark and Q ) and written 80-110 AD, 50 to maybe up to 80 years after Jesus’ death and resurrection. So, at the time written, those witnesses would be the age of presidential candidates, and we know what that means. In the absence of history books, TV and the internet, I think it possible Luke’s sources got the governors and such wrong, After all, I am pretty fuzzy on what the president did 50 years ago, and would have to look it up to see who the president was at that time. (Nixon, barely)