Complex sentence: With the collapse of the Whigs, he ran as an Opposition Party candidate in 1854 and was elected to the Thirty-fourth Congress, in which he became chairman of the powerful House Committee on Ways and Means.
Split into simpler sentences: With the collapse of the Whigs, he ran as an Opposition Party candidate in 1854 and was elected to the 34th Congress. He became chairman of the powerful House Committee on Ways and Means.