The Supreme Court agreed on Wednesday to decide a question at the heart of the federal election-interference case against former President Donald Trump and hundreds of prosecutions arising from the assault on the Capitol on January 6, 2021, Can the government charge defendants in those cases under a federal law that makes it a crime to corruptly obstruct an official congressional proceeding? The decision to hear the case will complicate and perhaps delay the start of Trump's trial, now scheduled to take place in March.