It was supposed to be fairly straightforward. The Senate would return to Washington and pass the big spending package the House passed last week and the Capitol would shake off its all-too-familiar shutdown showdown drama. Then federal immigration agents shot and killed Alex Pretti in the street in Minneapolis. Homeland Security Department money was in the package the Senate was considering. What path there was to an agreement was diverted to questions of basic American rights, whether citizens were safe from their government, whether to impeach Homeland Security Secretary Kristi Noem, how much support was there for President Donald Trump and his immigration crackdown, and more.