WHAT TO KNOW

* Trump today removed IRS Commissioner Billy Long and is replacing him temporarily with Treasury Secretary Scott Bessent, three sources with knowledge of the matter told NBC News. Long, who was sworn in just over a month ago, was already the sixth person to hold the job this year. * The Trump administration has proposed a $1 billion settlement with UCLA amid a larger battle over federal funding. The sum would have disastrous effects on the university, school officials said. * Trump and Vladimir Putin will hold a summit at the end of next week to discuss a ceasefire in Ukraine, a senior White House official said. * Israel says it will take over Gaza City, escalating its war with Hamas as it faces growing domestic and international outrage over the 22-month conflict. * Trum

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