Quickly catch up on the day's news

(CNN)Here's what you might have missed Monday on CNN:

-- The United States and Mexico have reached an agreement to change parts of NAFTA, the trade deal that President Donald Trump has derided for years as unfair.
-- In a letter read by longtime aide, the late US Sen. John McCain encouraged Americans to unite around the ideals that connect them rather than focus on divisions. He also pointedly asked Americans to tear down walls rather than build them.
-- The White House flag returned to its regular position even as other flags around Washington -- including at the US Capitol -- remained in the half-staff mourning position honoring the passing of Sen. McCain.
    -- North Korea accused the United States of "hatching a criminal plot to unleash a war" while "having a dialogue with a smile on its face."
    -- NFL superstar Odell Beckham Jr., reportedly signs $95 million contract extension.
    -- A group of teens were pushing a woman's stalled car. Four were killed when an SUV slammed into them.
      -- The head of ISIS in Afghanistan, Abu Sayed Orakzai, also known as Sad Arhabi, and 10 other ISIS fighters were killed Saturday night in an airstrike.
      -- A Ferrari GTO is the most valuable car ever auctioned. It sold for $48 million.