He treated the Levellers with some severity and showed his instinctive dislike to revolutionary proposals.
Vane, Ludlow, Robert Overton, Harrison and Major Wildman, the head of the Levellers, were all arrested, while the royalist rising under Penruddock was crushed in Devonshire.
He thought every one was amenable to reason - bishops and levellers included.
The country was flooded with government spies and informers, whose efforts were seconded by such voluntary societies as the Association for preserving Liberty and Property against Republicans and Levellers, founded by John Reeves, the historian of English law.
In January 1647 he was committed to the Tower for accusations against Cromwell, but was again set at liberty in time to become a disappointed spectator of the failure of the "Levellers" or ultrademocratic party in the army at the Ware rendezvous in the following November.