NPR News Now covers the formal withdrawal of U.S. military forces from Iraq, ending the anti-ISIS coalition, alongside escalating trade tensions as the U.S. bans $1 billion in Canadian goods. Former special counsel Jack Smith testifies before the Senate, standing by his decision to prosecute President Trump, while FBI Director Kash Patel announces the arrest of a suspect linked to the Shiny Hunters hacker group. The episode also reports on a Navy jet crash off Virginia Beach, the relaunch of the America.gov website using AI tools, and flood watches across the central U.S.