Johnson spoke Wednesday night at halftime of the Clippers-Lakers game at Staples Center. He said Obama "crossed all racial lines."
Johnson said not only did he not believe as a kid growing up in Michigan that there wouldn't be an African-American president in his lifetime, he had doubts the country was ready to make such a decision while Obama was running.
The Hall of Famer supported Hillary Clinton for president until Obama won the Democratic nomination.
He said he believes Obama is prepared to do the best possible job.