Sacramento Mayor Kevin Johnson is among those who've had a bucket of cold water dumped on his head as part of the nationally-popular "Ice Bucket Challenge."

In response to a dare issued by the Kings fan group "Crown Downtown," the mayor was doused by his assistant this morning as part of the fundraising and awareness campaign launched this summer by the ALS Association.  

The mayor issued the challenge to Governor Jerry Brown, former California First Lady Maria Shriver and NBA Hall of Famer Hakeem Olajuwon.