Highest legislature, consisting of the sovereign, the House of Lords, and the House of Commons.
In this quotation Winston Churchill is expressing reproach with the use of the word dishonor in regards to whoever he believes acted dishonorably. The word reproach means to address someone in a way that expresses disapproval or disappointment (in this case it is disappointment or disapproval in the other parties actions which he has labeled "dishonorable."
He invented the power loom.
The answer is A vote to impeach