monica alba has more. >> reporter: in alabama the most influential candidate is not on the ballot. >> donald trump. >> president trump. >> president trump. >> reporter: alabama has the race president trump is the most personally invested in, other than his owns, pitting jeff sessions against tommy tubberville. >> we don't know this man. he is an empty suit. >> you can't fake it. you're either strong or you're not. and jeff sessions, he's not. >> it was in mobile in 2016 that jeff sessions threw on a red hat. becoming the first snenator to endorse t endorse donald trump for president. despite the immigration policy, the president never forgave sessions for his recruiusal fro the russia investigation. >> as you know, the attorney general said i'm going to recuse myself. >> the president was itching to campaign against jeff sessions in march. one week later the president endorsed tubberville and in june they travelled together aboard air force one. jeff sessions took the blow and continued to endorse his boss. >> did i write a tell all book? no. did i go on cnn and attack the president,

monica here to break down the race for us. jeff sessions is trying to stand up to the president, show he supported the president and get re-elected to this doug jones seat. does it have any chance of working? >> well, it's the big question that alabama voters will be weighing on tuesday, kasie. many of them appear undecided. it's a state the president won by double digit in 2016 and a state that supported jeff sessions in the past. from the limited polling he does seem to be behind tommy tuberville. it appears he's doing everything he can to ensure the defeat of one of his first endorsers. not on the ballot. >> president trump. >> president trump. >> alabama has the race president trump is most personally invested in, other than his own, pitting his first attorney general jeff sessions against former auburn football coach tommy tuberville. >> we don't know this man. he is an empty suit. >> you can't fake it. you're either strong or your not. an jeff sessions, he's not. >> it was in mobile in 2016 that sessions through on a red