With business investments and a family inheritance, Rep. Paul D. Ryan of Wisconsin and his wife have accumulated millions of dollars in assets and generated income last year well above his congressional salary, according to his most recent financial disclosure statement. Mitt Romney’s newly announced running mate reported assets in the range of $2 million to $7.7 million. The largest was the interest that his wife, Janna, holds in a trust resulting from the 2010 death of her mother, Prudence Little. Her interest in the trust falls in the range of $1 million to $5 million, Ryan reported. Ryan also...