Tuesday on the NewsHour, Donald Trump appears in court to argue that he's immune from criminal charges stemming from his time in office. The Pentagon reveals Defense Secretary Austin is being treated for prostate cancer. Plus, 2023 blows past the last record for the hottest year and nears a critical global warming threshold that countries have been trying to avoid. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders