There is no leadership in the US.  Leadership requires credibility and our leaders have none.  Lets start with Bush and Co in the middle east.

Iraq will pay for the war.
There are weapons of mass distruction
They will dance in the streets and embrace democracy
The war will last only a few months at most
The insurgency is fading
There are WMDs and we know where they are
We will bring Osama to justice
We have put in place a democracy in Afganistan
We will not support a cease fire in Labanon until Hezbollah puts down its arms.  Then Condi negotiates a cease fire and Iran resupplies Hezbollag through the main commercial airports.
...

That is enough right there to completely discredit the administration.  I don't care about the reasons why they are wrong or technicalities that may make a couple of them false.  The overwhelming perception is the administration is wrong most of the time.

The support for the administration comes from Bush trying to do something and the Democrats are not willing to do anything.  This is a Dobsonian for the people of the US.  Doing something and doing it poorly is a problem for a world leader.  Being wrong or executing poorly most of the time is dangerous.  In the current political and economic environment, it will likely distroy the superiority of the US.