Chase is Republican, and tries to use the death of a young teenage girl to destroy Frank Underwood's career, and take his Congress seat. However Frank is able to get out of the "mini-scandal" and turn it on Oren. Frank does state that there is a Congressional seat open, and Oren can run for it.
Chase later becomes involved in a smear campaign against the now President Underwood and vandalizes a billboard and replaces it with a picture depicting Underwood father with a KKK member. He did this after being convinced by Leann Harvey to do so. He is then reprimanded by Underwood and forced to apologize.