On the subject of illegal aliens: They way I understand the current posture from Robert Pear of the NYT: The House version allows undocumented aliens to purchase on the exchanges without direct premium assistance. The Senate version doesn't allow them to purchase on the exchanges at all.

Proponents of the House version argue that this means no subsidies for illegals. Opponents argue that the rate setting within the exchanges is an indirect subsidy.

(If the House version of this passes with the trigger approach, so that only some states must permit undocumented aliens to buy coverage, that will be interesting.)