Morris was a three-time winner of Michigan's Associated Press Class C Player of the Year Award and a three time all-state selection.

Morris tallied a season-high 15 points in the Cyclones' NCAA Tournament win against NCCU and followed that with 13 against the North Carolina Tar Heels.

His 1.3 steals per game ranked seventh in the Big 12, and he had an ISU freshman record of 12 assists with no turnovers against West Virginia.

He played 52 minutes of turnover-free basketball in ISU's triple-OT win at Oklahoma State and had 10 points and five assists, including the game-winning 3-pointer with 43 seconds left in the third overtime against the Cowboys.

His first-career 20-point game came against Texas Tech, he recorded his first double-double and just missed a triple-double with 11 points, 10 assists and seven rebounds against Kansas.

[14] In 2017, Morris led Iowa State to a 5th seed in the NCAA tournament and got into the second round before losing to Purdue.

[18] On February 16, 2022, Morris scored 13 points, including a game-winning three-point shot as time expired, in a 117–116 win over the Golden State Warriors.

[19] On July 6, 2022, Morris was traded, alongside Will Barton, to the Washington Wizards in exchange for Kentavious Caldwell-Pope and Ish Smith.

[20] Morris made his Wizards debut on October 19, recording seven points, six rebounds, six assists and two steals in a 114–107 win over the Indiana Pacers.

[22] Due to a lengthy recovery from a quadriceps injury to begin the 2023–24 season, Morris played in just six games for the Pistons before being dealt away at the NBA trade deadline.

On February 8, 2024, Morris was traded to the Minnesota Timberwolves in exchange for Troy Brown Jr., Shake Milton and a 2030 second-round pick.