The Olive Branch Petition is undermined by a confiscated letter from Adams to a friend, expressing his discontent with it.
Adams had written that war is inevitable, and he thinks that the colonies should have already raised a navy and captured British officials.
This letter arrives in Great Britain at about the same time as the petition; advocates of coercion use Adams' letter to claim that the petition itself is insincere.
On August 21, Richard Penn and Arthur Lee had provided a copy to Lord Dartmouth, the colonial secretary; it will be followed with the original on September 1.
However, the King has refused to see them or to look at the petition, which originates from what he considers an illegal and illegitimate assembly of rebels.
Instead, in response to the news of the Battle of Bunker Hill, the King issues the Proclamation for Suppressing Rebellion and Sedition on August 23, declaring the North American colonies in a state of rebellion and ordering "all Our officers...and all Our obedient and loyal subjects, to use their utmost endeavours to withstand and suppress such rebellion."
The proclamation had been written before Dartmouth had received the petition; the King refuses to receive it and the proclamation effectively serves as his answer.