($33) AK on Kxx, 2 reraisers

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (9 handed) internettexasholdem.com

UTG+1 (t800)
MP1 (t970)
Hero (t770)
MP3 (t1500)
CO (t675)
Button (t900)
SB (t670)
BB (t915)
UTG (t800)

Preflop: Hero is MP2 with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls t15, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t60</font>, MP3 calls t60, CO calls t60, <font color="#666666">3 folds</font>, UTG+1 folds.

Flop: (t217.50) K[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets t220</font>, <font color="#CC3333">MP3 raises to t440</font>, CO calls [t615] , Hero calls [t490] t220, MP3 calls t270.

Turn: (t1147.50) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>

River: (t1147.50) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>

Final Pot: t1147.50

Results in white below: <font color="#FFFFFF">
Hero has Ks Ac (one pair, kings).
MP3 has Kh As (one pair, kings).
CO has 8c 8s (three of a kind, eights).
Outcome: CO wins t1147.50. </font>


I lead the flop with a pot-sized bet, and two people re-raise behind me. Should I assume at least one of them has me beat, and fold?

[Insty]

Yes.
I'd probably bet less on the flop too, bet 170 or so. It's still a big enough bet to discourage all but the most enthusiastic of drawers, and save yourself some chips when you have to fold.

P.S.
This post would have been better if you'd left off everything after the flop action.