I don't think any American wants to live in a country in which each political party starts oiling up the impeachment machine as soon as a candidate from the opposition party is elected (which, remember, is pretty much what happened when Bill Clinton won the 1992 election--I think there were calls for impeachment before he had even been sworn in). Because of the Clinton impeachment circus, the millions of dollars wasted, and the fact that his approval ratings were higher when it was all said and done than they had been before, the Democrats have been loath to even consider impeachment as an option against Bush.
But let's put things in context. Clinton was impeached for telling a lie about getting oral sex from a consenting adult. Yes, lying is bad.
The Bush administration, however, has just been shown by the Center for Public Integrity and the Fund for Independence in Journalism to have lied about Iraq at least 935 times during the build-up to war. This is just in a two-year period, not all the lies they told before and after that period, or about all the other things they've lied about. This is specifically a tally of lies (that they knew were lies) told with the goal of taking our country into a war that didn't need to be fought (because if it did, they wouldn't have had to lie about it, would they?).
This is from the study's introduction (emphasis mine):
"President George W. Bush and seven of his administration's top officials, including Vice President Dick Cheney, National Security Adviser Condoleezza Rice, and Defense Secretary Donald Rumsfeld, made at least 935 false statements in the two years following September 11, 2001, about the national security threat posed by Saddam Hussein's Iraq. Nearly five years after the U.S. invasion of Iraq, an exhaustive examination of the record shows that the statements were part of an orchestrated campaign that effectively galvanized public opinion and, in the process, led the nation to war under decidedly false pretenses.
"On at least 532 separate occasions (in speeches, briefings, interviews, testimony, and the like), Bush and these three key officials, along with Secretary of State Colin Powell, Deputy Defense Secretary Paul Wolfowitz, and White House press secretaries Ari Fleischer and Scott McClellan, stated unequivocally that Iraq had weapons of mass destruction (or was trying to produce or obtain them), links to Al Qaeda, or both. This concerted effort was the underpinning of the Bush administration's case for war.
"It is now beyond dispute that Iraq did not possess any weapons of mass destruction or have meaningful ties to Al Qaeda. This was the conclusion of numerous bipartisan government investigations, including those by the Senate Select Committee on Intelligence (2004 and 2006), the 9/11 Commission, and the multinational Iraq Survey Group, whose "Duelfer Report" established that Saddam Hussein had terminated Iraq's nuclear program in 1991 and made little effort to restart it.
"In short, the Bush administration led the nation to war on the basis of erroneous information that it methodically propagated and that culminated in military action against Iraq on March 19, 2003. Not surprisingly, the officials with the most opportunities to make speeches, grant media interviews, and otherwise frame the public debate also made the most false statements, according to this first-ever analysis of the entire body of prewar rhetoric.
"President Bush, for example, made 232 false statements about weapons of mass destruction in Iraq and another 28 false statements about Iraq's links to Al Qaeda. Secretary of State Powell had the second-highest total in the two-year period, with 244 false statements about weapons of mass destruction in Iraq and 10 about Iraq's links to Al Qaeda. Rumsfeld and Fleischer each made 109 false statements, followed by Wolfowitz (with 85), Rice (with 56), Cheney (with 48), and McClellan (with 14)."
Find the whole exhaustively detailed study (complete with search function) here.
Almost 4,000 American lives have been lost as a result of these lies, and we'll probably never have an accurate count of Iraqi deaths. Trillions of dollars have been spent that could have gone into more important programs right here at home, or simply not spent in order to reduce the debt the next several generations will owe. Osama bin Laden was able to escape punishment, al Qaeda allowed to regroup and retool, and the nation made less safe.
Consenting oral sex, or a war of choice that harms America irreparably for decades to come? Which one really measures up to the standard of "high crimes and misdemeanors" required for impeachment?