NASCAR chairman France will not act on Busch assault claim until investigation is finished

NASCAR chairman Brian France says no disciplinary action will be taken against Kurt Busch while police in Delaware investigate a claim of domestic assault made by his former girlfriend.

France says "it wouldn't be right to intervene" until the investigation is over. Speaking Friday at Homestead-Miami Speedway, France says he is sensitive to the "rightful, heightened awareness on domestic abuse and violence."

U.S. Rep. Jackie Speier of California sent a letter to NASCAR President Mike Helton and Stewart-Haas Racing asking for Busch's suspension for Sunday's season finale.

She asked NASCAR to adopt a policy of suspending drivers accused of domestic violence until criminal proceedings end or there is a clear lack of evidence. France says there are no changes planned to NASCAR's domestic dispute policy.