He still found much to do; his influence was increasing; he opposed the doctrines of the more moderate Liberalism with the same energy with which he had attacked the extreme Revolution.
The most important debates were those concerning the Constitution; he took part in them, especially opposing the claim of the Parliament to refuse taxes.

He saw that if the right was given to the Lower House of voting the taxes afresh every year they would be able to establish a complete control over the executive government; this he did not wish.

He was willing that they should have the right of discussing and rejecting any new taxes and also, in agreement with the Crown and the Upper House, of determining the annual Budget.

It was maintained by the Liberals that the right to reject supplies every year was an essential part of a constitutional system; they appealed to the practice in England and to the principles adopted in the French and Belgian Constitutions.

Their argument was that this practice which had been introduced in other countries must be adopted also in Prussia.