6 PM ET: House speaker booed, AZ abortion ban, bird flu traces & more CNN 5 Things

House Speaker Mike Johnson called on Columbia University’s president to resign during a tense visit. Arizona's House of Representatives has voted to overturn the state's Civil War-era abortion ban. The United Nations wants an independent investigation into mass graves found in Gaza. The FDA found traces of the avian bird flu viruses in grocery store milk. Plus, school lunches are going to get healthier.
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