Former First Lady Nancy Reagan — the influential and stylish wife of President Ronald Reagan, the GOP standard-bearer — died Sunday at her home in Los Angeles. She was 94. (NY Times)
Republican Donald Trump and Democrat Hillary Clinton were leading their competitors by double digits in tomorrow's key Michigan primary, according to a new NBC News/Wall Street Journal/Marist poll.
Hillary Clinton and Bernie Sanders tangled aggressively in Sunday's debate. While Sanders won three states over the weekend, Clinton won one state and retained her wide lead, heading into tomorrow's contests. (AP)
Hillary Clinton told CNBC she isn't seeking a third term of her husband, Bill Clinton, or Barack Obama's — adding her proposals are "pretty revolutionary." Adding to her challenges is the ongoing FBI investigation into her email practices.
GOP presidential candidate Florida Sen. Marco Rubio won Sunday's Puerto Rico primary, his second nominating win. It came a day after front-runner Donald Trump and Texas Sen. Ted Cruz each won two states. (NBC News)
Rubio and Ohio Gov. John Kasich face crucial tests next week, when their home states hold primaries. Former California Gov. Arnold Schwarzenegger endorsed Kasich over the weekend. (Cincinnati.com)
North Korea has threatened to launch an "all-out offensive" and "indiscriminate nuclear strike" against the U.S. and South Korea in retaliation for their joint military exercises. (CNBC)
Amazon (AMZN) is restoring the encryption feature on its Fire tablets, reversing an earlier decision to remove the security option. The move follows criticism from customers and privacy advocates. (Reuters)
Yahoo (YHOO) faces an increasing battle with Starboard Value. The activist investor is pushing for control of the board, seeking at least four seats, in talks scheduled for this week. (Reuters)
Walt Disney's (DIS) "Zootopia" topped the weekend box office, garnering $73.7 million in North American ticket sales. That marks the company's fourth biggest March opening weekend on record. (Variety)
Downton Abbey, the top-rated PBS drama and a cultural phenomenon, ended its six-season run Sunday with an array of beginnings. Here's the recap, which contains spoilers. (USA Today)