Party Poker No-Limit Hold'em, $ Hero (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FCP)

Button ($50)
SB ($49.50)
Hero ($55.75)
UTG ($91.87)
UTG+1 ($87.30)
MP1 ($37.65)
MP2 ($31.65)
CO ($50.50)

Preflop: Hero is BB with A , Q . SB posts a blind of $0.25.
UTG raises to $2, 6 folds, Hero raises to $5.5, UTG calls $4.

Flop: ($12.25) 3 , 6 , A (2 players)
Hero bets $9, UTG raises to $28, Hero ??

Villain is LAGgy with a capital L - 50/22/2.5 - I re-raise him PF specifically because it's him. PF and Flop to this point ok? Call, re-raise or fold to the overbet?

I push. Against a guy this aggressive this could be a weaker ace, a flush draw, 45, or even a total bluff.

Oh, and I quite like the flop. Raise more preflop.

insta all in..he shows a weaker ace here a lot

I'm not going to disagree that I probably push this, but I will remark that this is not as straight forward as simo and Matt think.

In pushing, I think we're trying to accomplish one thing, charge a potential diamond draw. Fair enough and why pushing is probably the most standard route. However, the draw is still a small percentage of his holdings since he's a LAG in position. In reraising, we have "declared" I have a high pocket pair. The ace pops and most semi decent LAGS are going to represent the ace on the flop. Smooth calling the flop and c/ring the turn can likely win us more money than pushing the time when he does not have a hand that could stand to call a flop push.

If we were more deepstacked then I would agree, but I don't see many players bluffing again on the turn when we have called 60% of our stack on the flop. I also think that a diamond draw is likely to check behind on the turn for the same reason.