Summer polls

[CARLHAYDEN]

Those who have been around for awhile are aware that summer polls for many survey research firms tend to lean Democrat, and then snap back when summer ends.  Here's an example from Polimetrix in its Generic House Race preference polls:

Date                                        Republican          Democrat          Difference

August 30 to September 1          37 %                    41 %               4 %
August 16 to August 18              37                        44                    6
August 9 to August 11                36                        46                  10
July 19 to July 21                        36                        48                  12
June 28 to June 30                     33                        47                  14
June 21 to June 23                     36                        45                  13
June 7 to June 9                         37                        45                    8
May 31 to June 2                        38                        44                    6

[CARLHAYDEN]

Obama's worst polling (post-Wrightgate, at least) was also during the late summer.

Obama hit a bad patch due to events (his initial opposition to off-shore drilling and the Russian invasion of Georgia).  It had nothing to due with summer.