Question: The 2012 United States presidential election in Iowa took place on November 6, 2012, former Massachusetts Governor Mitt Romney, had his running mate, Congressman Paul Ryan, an American politician who is which ordinal number, and current Speaker of the United States House of Representatives?
Sentence (from "Paul Ryan"): Paul Davis Ryan Jr. ( ; born January 29, 1970) is an American politician who is the 54th and current Speaker of the United States House of Representatives.
Relevant evidence: Yes