AA in a TAG 6 max

[rigoletto]

[ QUOTE ]
Why not reraise the turn? That could easily have been a semibluff raise. Since you went for a river CR, I assume you were not worried about being behind. Also, his raise could have been the "I'm going to call him down anyway...may as well raise".

[/ QUOTE ]

This question is really why I posted the hand. When he raised I was certain he had a made hand of some kind and it could be anyting from medium pair to KK. I'm concerned that he will fold the weaker ones to a 3-bet and I have to call a 4-bet and a river bet because AK is a strong possibility. When I'm certain he'll bet the river I guess the checkraise is the safe line. I'm still not sure what is best here...