The Hill (excerpt)(SOTU falls flat-))

 Bill Clinton's approval rating jumped six points after his 1996 speech and 10 points after his 1998 address. Only one poll has come out to date with an approval rating, and Rasmussen reports Bush's approval down three points in the days after the speech.
There are other measures of success, and Bush's speech lags on most of them. According to Gallup, 48 percent of those who watched Bush had a "very positive" reaction -- the lowest since Gallup began keeping track in 1998, except for Bush's own 2004 appearance (45 percent were very positive).
Over 80 percent of those who watched Clinton's speeches were convinced afterward that he was leading us in the right direction. Bush's speech convinced just 44 percent of those who saw it that the economy was getting better and only 40 percent that our situation in Iraq was improving. Those failures are particularly striking when one considers that only 25 percent of Bush's audience was Democrats, while 52 percent were Republicans.
Even more important than history is political necessity. A president's approval rating is his most potent weapon. Bush's rating is already lower than that of any other second-term president at a comparable point, except for Richard Nixon, soon to resign.

CNN (excerpt)

President's speech received favorably

WASHINGTON (CNN) -- Overall, President Bush's State of the Union was received favorably by a sample of speech watchers interviewed by CNN and Opinion Research Corporation immediately after his 50-minute address to a joint session of Congress.

But the poll showed that Bush registered his lowest "very positive" post-State of the Union reaction of his presidency. Bush reached a high water mark of a 60% "very positive" response immediately following his 2005 speech. In 2006, 48% of speech watchers described his address as "very positive."

As for Tuesday night's speech, only 20% of those polled had a "negative" reaction to Bush's speech, while 41% walked away with a "very positive" feeling about the speech and 37% had a "somewhat positive" reaction.

A bare majority of Americans who watched the speech said they were confident that the U.S. would achieve its goals in Iraq; 46% were not confident. Compare that to the 2004 State of the Union, less than a year after the start of the Iraq war, when 71% of people who watched that speech expressed confidence about Iraq.

On the issue of bipartisanship, 53% of speech watchers said Bush's remarks were more likely to lead to cooperation between Democrats and the White House, while 43% did not think the address would help bridge the political differences.

The CNN/Opinion Research Corporation poll interviewed 370 adult Americans -- 32% Republican, 31% Democrat and 36% Independent -- who watched Bush's speech.