Complex sentence: Howard Henry Baker, Jr. (November 15,1925 June 26,2014) was a Senate Majority Leader, Republican U.S. Senator from Tennessee, White House Chief of Staff for President Ronald Reagan, and a United States Ambassador to Japan.
Split into simpler sentences: Howard Henry Baker, Jr. (November 15,1925 June 26,2014) was an American politician and diplomat who served as a Republican U.S. Senator from Tennessee and Senate Majority Leader. Baker later served as White House Chief of Staff for President Ronald Reagan, and a United States Ambassador to Japan.