California governor Jerry Brown has agreed to use federal funding to add 400 National Guard members to their efforts "combat transnational crime," although it was not clear how many would be specifically sent to the border.

Why it matters: There has been ongoing friction between California and the Trump administration over immigration issues. Governor Brown did not make a public statement on Friday when Defense Secretary James Mattis approved funding for up to 4,000 National Guard troops to be sent to the border.