Lib Dem city councillor Jamie Dalzell used his speech to the Defend Democracy rally to call for a Government of National Unity to remove Boris Johnson from power.
As he struggled to be heard by the huge crowd in Cambridge Market Square, Jamie said "The first real action of Boris Johnson as Prime Minister has been to wound this country. Let's make sure it's his last.
"On Tuesday, the leaders of all opposition parties came together with common purpose.
"Before we can reconcile the nation, we are going to have to learn to work together. We must forgive each other for perceived past transgressions"
The full speech is linked below.