One of the best-known Tesla analysts laid out a plan for the electric and self-driving vehicle giant’s board to curb the firm’s controversial CEO Elon Musk, the latest evidence of Wall Street growing fed up with Musk’s non-Tesla actions, including an ugly spat with President Donald Trump.

Wedbush analyst Dan Ives wrote that the EV maker’s directors need to set ground rules for the CEO regarding his political activities.

Elon Musk's empire isn't exactly crumbling, but it looks increasingly vulnerable as his falling out with President Trump intensifies.Why it matters: The world's richest person enjoyed ballooning wealth in the early days of his alliance with the president,