President-elect Donald Trump has chosen Linda McMahon, the former CEO of World Wrestling Entertainment, to be his secretary of the Education Department. He has also selected Dr. Mehmet Oz, a former television talk show host and heart surgeon, to head the agency that oversees health insurance programs for older, poor, and disabled Americans. Trump named Wall Street executive Howard Lutnick to lead the Commerce Department. The Kremlin has revised its nuclear policy, lowering the bar for the use of atomic weapons. Russia's nuclear doctrine now allows President Vladimir Putin to use Moscow's atomic arsenal in response to a conventional attack backed by a nuclear power. Ukraine has fired several American-supplied longer-range missiles into Russia, marking the first time Kyiv has used the weapons in 1,000 days of war. The use of the Army Tactical Missile System came as Putin formally lowered the threshold for using nuclear weapons. Voters in California have rejected a ballot measure that would have raised the state minimum wage to $18 per hour by 2026, the highest in the country. SpaceX launched another Starship rocket but passed up catching the booster with giant mechanical arms. President Joe Biden appealed to world leaders to surge money to developing nations to curb climate change as he wrapped up his final appearance at a major international summit. Distant, ancient galaxies are giving scientists more hints that dark energy may not be what they thought.