This week Bush's lead is decreased to five points in a two way race and six points in a three way race. This remains a greater lead than most polls are showing, but the movement over the last week does sound very significant.
Keep in mind when reading any national polls that the election is really fifty separate elections, and Bush's gains were primarily in states that were already safely going for him. Kerry has concentrated on the battle ground states, which paid off with the Zogby battlegorund survey showing Kerry ahead in the electoral college even when behind in the overall popular vote.
This week's results of the Newsweek poll are at: