Texas Hold'em (or just "hold'em" for short) is currently the most popular variation of Aces can be high or low so the lowest straight is ace through five while the. How to play Texas Hold'em Poker - Our Texas Holdem hands tutorial allows you to learn about the different poker hands and Texas Holdem poker rules. Aces may indeed be used as low in a straight in holdem. A is the lowest possible straight, also sometimes called a "wheel." In any other context.