Once and for all, I want to do something about Medicare. This issue has been too long on the table because it's been a political issue. It's time to bring folks together to say that all seniors will get prescription drug coverage. I want to do something about Social Security.
This person wants to expand access to healthcare. 
The passage does not specify whether or not this person wants to expand healthcare. 
( z1 want :ARG0 ( z2 person :mod ( z3 this ) ) :ARG1 ( z4 expand :ARG0 z2 :ARG1 ( z5 access :ARG1 ( z6 healthcare ) ) ) )