Illegal immigration via the US-Mexico border remains one of the most pressing problems for Congress. And yet the much anticipated $118bn border security bill, which included aid packages to Ukraine and Israel, was blocked by senators after a chaotic week. Why did this crucial piece of legislation with bipartisan support get rejected by the very people who demanded it? This week, Joan E Greve is joined by Marianna Sotomayor, the congressional reporter for the Washington Post, to discuss why the border bill failed