The Loyal Heir? Waiting in the Wings: House Majority Leader Eric Cantor, R-Va., who is already trying to position himself as sort of the champion of the House Republican hard-liners (whether they see him that way, or not), is sure to continue playing the hyperactive Republican attack dog in the budget battles, even as Boehner is forced to continue his more-moderate negotiating approach. Some suggest this already has caused some friction between Boehner and his No. 2. Both sides downplay such talk, even as Cantor does at times seem to be outside of the negotiating loop in Boehner’s talks with the Senate. For Cantor, the question may be what it is, exactly, that he might be expecting to get in return, long-term, for his understudy/attack-dog role?