R help - Jan 2015 - #library(CHAID) - export associated probabilities and rules for each row

Hello, 

How can I export the sample data frame below -USvoteS with the associated
probabilities and rules for each row?

library("CHAID") 
example("chaid", package = "CHAID")

To be more specific, for each of 1000 rows of the USvoteS data frame I want to
see in which node is that row in (what are the rules associated with it)
and with which probability. This may refer to any kind of decision tree, not
only CHAID.
  

Thanks, 
Rodica