How do you handle an All In Raise when you are holding AK?

As with almost everything in poker... Depends!

Is the guy raising and shoving a lot? What positions are you and villain in? What are the stack sizes?

For example, if you're raising from CO and later and you get shoved on it's a pretty easy call no matter what, because you would've 4bet and got in with AK anyway if he had made a regular 3bet (assuming 100bb effective stacks).

It depends on stakes and Villain's tendencies but I'm gonna assume this happened at either NL2 or NL5, since you won't really see deep shoves after a single raise anywhere else. I think it is generally a bad idea to call, since they tend to do this with QQ+, so if you are not entirely sure the player is a complete idiot who could be doing this with weaker hands, just fold.

Ya i think its like TJ said. If you raise from any LP than he has a higher fold equity on you. therefor chances of weaker pairs arent that bad. Also consider how long your playing against him. Maybe he knows you like to raise alot marginal hands.

All in all, i just watched splitsuits video about it, and i think its good for you too. If a super nit raises allin after u reraising him - what does that mean? Either he must have QQ+ or AKs. But would he shove with something like AA and KK? - Wouldnt he just 3-bet or call your raise for now or later value. All he is presenting you with the allin is that he wants you to fold it.

So its a pretty grey zone. Against any fish or loose player who i already saw shoving, maybe even OOP then id call him.

I definitly agree with kvince. If it is micro-stakes 2NL or 5NL. They do not know the concept of 4bet and will shove with JJ+ or AK. Of course there are always exceptions. If the player has really loose stats or has been tilted, you can reconsider a call. But I believe you can safe money the majority of time by folding.

It all depends on the villain I guess. If he/she is on tilt, or is very loose and open shoves a lot with a range that includes medium pairs and weak aces (A 10 suited) then It's a snap call. If the villain is generally tight/or unknown I'd fold and observe his/her game play for the next few orbits to see if I made a bad fold or not. Information is everything in poker and considering you only invested 3bbs in the pot it's probably wise to fold until you have further information on the player.