Veep Choice Doesn’t Move the Polls (Gallup and Rasmussen unchanged)

From PowerLine:

http://www.powerlineblog.com/archives/2012/08/veep-choice-doesnt-move-the-polls.php

No surprise there: as we have often said, vice-presidential candidates generally have little impact on voter preferences. Thus, the Gallup Poll currently has Obama and Romney tied at 46%/46%, while in Rasmussen’s likely voter survey, with two-thirds of the polling conducted after Romney’s announcement of Paul Ryan as his running mate, Romney continues to lead Obama 47%/44%. So Ryan’s selection has had no measurable positive or negative impact so far.

-snip-

Actually, there has been one change at Gallup in today's poll results:

Obama's approval rating is up 2 points, and his disapproval rating is down 2.