Capo 2
In the verses the Am and C are played with the root note then a 
D to E hammer (relative to the capo) on the D string and the 
Dadd9 is played just altering between the D and A on the bass.
(*) denotes where I instead would play an E7/G#, just for kicks.

Am             C                                   We used to love America
By happy hearts so broken                          We used to love America
Dadd9                                              We used to love America
We stuck by you, and you know                      We used to love America
Am                        C                        
Your bold swagger made us forget                   C
              Dadd9                                And I remember how you sang
The dagger at our throat                           Dadd9
                                                   We shall all sing again:
You're always in a hurry and a rage                           Am
I call it defiance or coming of age                Screw the rest
But you've cast your last spell on us                             F
You've bombed your last bridge to us, oh           The west knows best
                                                   
Am         C    Dadd9                              C
We used to love America                            Yeah, I remember how you sang
We used to love America                            Dadd9 (*)
We used to love America                            We shall all just sing it:
We used to love America                                       Am
                                                   Screw the rest
You would have won the world by letting go                        F
But then you lost your way                         The west knows best
Your glory days are gone, so smile and roll over   Oh, screw the rest
We've got so much more in common today             The west knows best
                                                   Screw the rest
All hail the stumbling child king                  The west knows best
Calling for the vanishing light                    Screw the rest
Now stay with us, as brothers                      The west knows best
Through this darkest of nights                     
                                                   We used to love America