A Republican congressman has introduced a bill that would stop government paychecks for officials who have been found in contempt of Congress — a move that seems designed in the short term to go after Attorney General Eric H. Holder Jr. Mr. Holder has refused to cooperate with the House GOP’s probe into the Fast & Furious gun-walking operation, and the House has voted to find him in contempt. Mr. Holder is challenging that vote in court. Rep. Blake Farenthold, a Texas Republican who publicly excoriated Mr. Holder at a hearing last week, introduced the legislation just before Congress went...