| − | [[File:Obama-poll.jpg|thumb|350px|Many Democrats were counting on riding Obama's coattails--but since the summer of 2009 those have become liabilities.]] | + | [[File:Obama-poll.jpg|thumb|350px|Many Democrats were counting on riding Obama's coattails--but since the summer of 2009 those have become liabilities. ''the little daily zig-zags are what is known as "sampling error"'']] |