Fold.
Two pair, middle and bottom is not the best hand on a flop like that.
Especially with the TAGG Villain calling you preflop raise, another intresting factor is that the Villain is not afraid to reraise your check raise on the flop. Check raising is ususally a show of strength and indicates you have a good hand yet he is not afraid to reraise your checkraise.
I think he made a set on the flop. Dont think he would have TPTK in that situation and call your raise, dont think he would have flopped the straight either. Since you raised preflop and he called would have had to have 10,7 or 5,7. Dont think he would make this call preflop with those hands.