Warren matched his career high with a pair of free throws with four seconds left, before a last second basket pulled George Washington (0-2) within four.
Chris Shelton had 19 points for Hampton (1-0), Edward Oliver-Hampton added 18 points and eight rebounds and Saheem Anthony had 14 points.
James Bishop scored a career-high 22 points and had seven assists for the Colonials. Matt Moyer added 15 points and seven rebounds and Jameer Nelson Jr. had 14 points.
For more AP college basketball coverage: https://apnews.com/Collegebasketball and http://twitter.com/AP-Top25
This was generated by Automated Insights, http://www.automatedinsights.com/ap, using data from STATS LLC, https://www.stats.com
Copyright 2021 STATS LLC and Associated Press. Any commercial use or distribution without the express written consent of STATS LLC and Associated Press is strictly prohibited.