Sacramento Mayor Kevin Johnson has not been deterred by two court rulings that prevent his strong mayor initiative from being placed on the June ballot. His latest strategy is to ask the City Council to place a new strong mayor proposal on the ballot. But Johnson’s new plan, which he announced on his blog Monday afternoon, cannot include the existing strong mayor initiative. That's because Sacramento Superior Court Judge Loren McMaster struck down the initiative last month, saying it broke state law. Johnson's blog entry does not explain the components of his new proposal. He described his new plan as a "collaborative executive mayor reform package." Joaquin McPeek, Johnson's spokesman,