On January 16, House Speaker Nancy Pelosi sent a letter to Donald Trump asking him to postpone the State of the Union address currently scheduled for January 29 based on security concerns as a result of the government shutdown. Her letter provides a strong example for dealing with gaslighters in the workplace. Read more on how to handle gaslighters in the workplace, à la Nancy Pelosi’s well-crafted letter in response to Donald Trump in my first article on Forbes Leadership Channel.