A weekend political roundup highlighted President Donald Trump’s reported use of Elon Musk’s Grok chatbot in discussions about Venezuela, a federal appeals court setback in Trump’s $10 billion lawsuit against the Internal Revenue Service, and tensions between Iran’s public rhetoric and diplomatic contacts with the United States. Trump also defended AI data centers at an Ohio rally amid concerns about electricity costs, while House Speaker Mike Johnson criticized House Democrats over tax legislation and their opposition to Republican-backed provisions involving tips, overtime and Social Security.