There was an anticipated 10 percent bounce in Barack Obama’s poll numbers after the announcement of his vice-presidential candidate, and the ensuing convention of the Democrats. Obama’s poll numbers actually dropped, and McCain took over the lead, still within the margin of error, but still no bump for Obama. Then a +1 bump after Bill and Hillary’s speeches, but still within the margin of error, according to the Rasmussen Reports. There is still the possibility of an upward movement in the polls for Obama after the close of the convention.
So what happened?