== Ancestry == 

 A short time before the full protection, the article was changed from McCain having Scots-Irish ancestry to just Scots (in addition to English).  Why?  When we went through FAC of this and Elmc, we were told NEHGS was the most reliable source for geneology.  Their report on McCain says (second paragraph) "The Senator’s male-line immigrant ancestor was a Scots-Irish Hugh McCain who came to Caswell County, N.C., about 1778 ..."  Am I missing something here?