Blancmange:
Blancmange is a cold dessert that is made from milk, sugar, cornflour or corn starch, and flavouring, and looks rather like jelly. [Collins Dictionary]
Noted in “senate might do the right thing maybe,” Greg Fallis:
An interesting thing happened in the Senate recently. Senator Lindsay Graham, who has the moral courage of a blancmange, said he would ask the Senate for a resolution condemning the House impeachment inquiry. That wasn’t the interesting thing, of course. Since the death of his friend John McCain, Graham has morphed into Comrade Trump’s attack poodle — alternately snarling at Trump’s critics and wagging his tail in the hope that Trump will give him a treat.