I disagree that Congress needs to "replace" it!! The government needs to get out to the health insurance business altogether. What they should be doing is passing laws that encourage the free market and that prosecute monopolistic and unfair practices, which include anti-consumer policies that are state centric. Capitalism works when the government gets out of the way but at the same time demands and enforces real competition.
Hence the word ‘entertain’. The word offers no promise of replacement, just that any propositions will be considered. Shuts up the opposition and provides cover for the party on power.