William McKenzie: ... Here, then, are a few things his GOP opponents need to know about Texas' governor: Most of all, don't underestimate his ability to win. Since his days at Texas A&M University, Perry has known how to prevail. In the early 1970s, he won election as a yell leader. Those are the guys you see in white outfits doing contorted cheers during Aggie games. Back then, yell leaders were about as big-men-on-campus as you got. A&M was made up largely of boys - and a few girls - from small towns and rural communities. The campus was a far cry from today's cosmopolitan school. In that cauldron, Perry forged an ability to outmaneuver others that continues to this day. Remarkably, he has won every one of his political races. He started out in 1985 as a Democratic state rep, rising to state agriculture commissioner, lieutenant governor, governor and, now, likely presidential candidate. Mitt Romney and crew need to especially understand that 1990 ag...