In September 1888 he was elected a member of the first chamber of the Riksdag, where he attached himself to the conservative protectionist party, over which, from the first, he exercised great authority.
He was one of the king's secret managers during the troublesome and dangerous riksdag of 1789, but advised caution and compared the estate of clergy, which at one time held the balance between the jarring orders, to ice which might be walked upon but could not be driven over.
But he reappeared prominently on the political scene during the riksdag of 1800, and in 1805 was consecrated bishop of Hernosand.
At the Riksdag assembled at Stockholm in 1697, the estates, jealous of the influence of the regents, offered full sovereignty to the young monarch, the senate acquiesced, and, after some hesitation, Charles at last declared that he could not resist the urgent appeal of his subjects and would take over the government of the realm "in God's name."
His political career began during the mutinous riksdag of 1786, when he came boldly forward as one of the royalist leaders.