A group of House and Senate Democrats who attempted to access the headquarters of the U.S. Agency for International Development (USAID) on Monday were denied entry. Why it matters: It's likely the first physical standoff between congressional Democrats and the second Trump administration — though it may not be the last as Democrats ratchet up their resistance to the new president.

Democratic members of Congress were denied entry Monday to the U.S. Agency for International Development, after billionaire Elon Musk, empowered by President Donald Trump, worked to close the nation’s humanitarian arm.