Pandering for votes may help embattled Republicans, such as Sen. Lindsey Graham of South Carolina this year ...I'm not sure how "embattled" Lindsey Graham is, but he probably won't be embattling anybody until nearer to the end of his term, which expires on January 3, 2015.
Besides, those Senate Republicans only want to "hold hearings" on the 14th Amendment.* What harm would those be? In fact, they'd be educational for the public (depending on who testifies, of course).
Congress shouldn't be discouraged from holding hearings conducive to the general civic enlightenment (as futile as such efforts may be).
* By the way, did you know that Sarah Palin had an anchor baby?
The Citizenship Clause confers State citizenship as well as national.