No, it shouldn't be an issue, except that people running on the "Ha! Look at how Christian and moral I am!" platform like to take credit for all the good stuff their family members have done, in addition to themselves. Which means they get slapped around when the offspring behave badly. How much was made of the Bush daughters' revelries in the media because G.W. Bush played himself as the morally upstanding father figure for us all. If he couldn't control his own daughters, the reasoning goes, how will he ever control the freaking country.

What the Huckabee kid did shouldn't be an issue, except in relation to what his da did. But if you're going to run on "family values" platforms, expect "Family values, my ass" dirt to be dug up.