You're breaking that high horse's back...

Republicans, now in power, think they are on moral high ground:

The Democrats lost in 2000, 2002, and 2004. It's time for them to move on stop acting like sore losers.

Days before the State of the Union address, Nancy Pelosi, in a news conference regarding the upcoming address, said, "We'll all be listening respectfully to the President."

Since when is jeering in the middle of the speech "listening respectfully?" Granted, most of expected some form of dissent by the Democrats when Bush spoke about Social Security—sitting there silent without clapping comes to mind—but, the outbursts made by the Democrats last night was inappropriate.

Inappropriate, indeed:

1999: Republicans Booed Clinton's Entrance Many Republican lawmakers gave him a cool, though not impolite, reception. There were a smattering of boos when Clinton first entered the House chamber, but they were quickly drowned out by applause. Some Republicans barely applauded, or refused at all to clap. House Majority Leader Dick Armey (R-Texas) and U.S. Rep. Tom DeLay (R-Texas) were conspicuously silent. [Boston Herald, 1/20/99]

I mean, what kind of party would boo a sitting President:

1998: Republicans Booed Clinton's Medicare Proposal Clinton's health-care initiatives, chiefly in the form of a medical bill of rights, found support on both sides, especially his attack on managed-care health-care plans. ... Clinton's proposal to expand Medicare to allow Americans as young as 55 to buy into the system drew shouts of "no" and some boos from Republicans during his speech. [Chicago Tribune, 1/28/98]

It's ridiculous to think that public needs that kind of discourse:

1997: Republican's Booed Clinton's Opposition to the Balanced Budget Amendment The Republican response was far warmer than perhaps any of Clinton's previous four State of the Union speeches. Time after time, Republicans jumped to their feet to join Democrats in applauding the president. Only once did they unmistakably and collectively show their disapproval--when Clinton spoke disparagingly of a GOP-sponsored constitutional amendment to balance the budget. Many Republicans hissed and some booed. [LA Times, 2/5/97]

Some would even say, "dispicable":

1995: Republicans Booed Clinton and Walked Out During Speech The upheaval wrought by the Republican election landslide was visible throughout the president's State of the Union address - from the moment Speaker Newt Gingrich took the gavel to the striking silence that often greeted Clinton from the GOP. At one point, Republicans even booed. About 20 of them left as Clinton went on and on for an hour and 20 minutes. [AP, 1/24/95]