(CNN) Buoyed by a new Gallup daily tracking poll showing Barack Obama ahead by a 9-point margin, the latest CNN poll of polls suggests the Illinois senator has doubled his lead over John McCain.
Obama now holds a 6-point lead in CNN's average of national polls, 45 percent to 39 percent, up from the 3-point margin over McCain the Democratic presidential candidate held at the end of last week. The increase is due to the wider spread Gallup is reporting a poll that was conducted toward the end of Obama's highly covered trip abroad. The results suggest Obama's trip which was extensively covered by the national and international media may have given the Illinois senator a sizeable bump in the polls. By comparison, the Gallup daily tracking poll showed Obama only up by 3 points at the end of last week.
http://politicalticker.blogs.cnn.com/2008/07/28/poll-of-polls-update-obama-up-by-six/