MEXICO-DRUG LORD

MEXICO CITY — Mexican officials formally launch the process to extradite re-captured drug lord Joaquin "El Chapo" Guzman to the United States, starting what could be a lengthy road full of legal appeals and maneuvering. 

MEXICO-DRUG LORD-DEL CASTILLO

MEXICO CITY — Mexican actress Kate del Castillo has stepped out of the fictional drug trafficker roles she played on TV and finds herself involved in the real world of drug capos. The actress is now credited by U.S. actor Sean Penn with setting up a secret meeting with the world's most wanted drug boss, Joaquin "El Chapo" Guzman, in the mountains of Mexico. 

PRESIDENTIAL RACE-REPUBLICANS

DES MOINES, Iowa — Three weeks before Iowa kicks off the state-by-state presidential nominating contests, businessman Donald Trump and Texas Sen. Ted Cruz are generating overwhelming enthusiasm among Republican voters in the state, along with concern, though not panic, among the party professionals who believe both are unelectable in November against the Democratic nominee. 

STATE OF THE UNION-THE REAL ONE

WASHINGTON — President Barack Obama delivers his final State of the Union address on Tuesday night to a nation whose economy is far sturdier than it was when he took office in 2009. 

POWERBALL JACKPOT

OMAHA, Nebraska — Lottery officials say the estimated $1.3 billion prize for the next Powerball drawing is the largest jackpot ever in the world. 

STOCK MARKET-ROCKY START

NEW YORK — Tumult in China triggered the worst opening week for U.S. stocks in history, and this week investors could get plenty more to worry about.