His theological radicalism had in any case never found many convinced adherents.
But his radicalism had now become of a disruptive quality, and he quarrelled with and even thwarted Kosciuszko because the dictator would not admit that the Polish republic could only be saved by the methods of Jacobinism.
This was cutting at the common root of allegiance, emigration and colonization; but such radicalism was too thorough-going for the immediate end.
In Congress he was one of the ablest opponents of slavery, contending particularly against the Compromise Measures of 1850,1850, but he was never technically an Abolitionist and he disapproved of the Radicalism of Garrison and his followers.
With the approach of the revolutionary year 1848, however, Radicalism once more began to lift up its head.