I have a theory:
Romney’s wife Ann and son Tagg took control of the campaign in it latter days (smile). Romney lost.
McCain’s wife Cindy took control of his campaign in its latter days. McCain lost.
Kerry’s wife Theresa took control of his campaign in its latter days. Kerry lost.
Insert between Romney and McCain:
Gingrich’s wife Calista took control of his campaign in its latter days. Gingrich lost.
==
Perhaps, candidates should hire and heed the advise of political experts, rather than family members.
Maybe we need candidates that can be their own political experts, you know, like Reagan.
Your point is well taken. Gore also used family memebers on his campaigns, so your theory has merit.
A choice between family members and Republican political "experts" is seemingly a Hobson's Choice between "disaster" and "catastrophe".