KNOW IT ALL: Wednesday's Top 8 Stories at NBC News

Good morning. Here are some of the stories we're following today:

For Subscribers

FOR SUBSCRIBERSAmerican passenger drafted goodbye texts to her family as Flydubai plane plummeted

FOR SUBSCRIBERSCornell rape allegation pushes embattled New York prosecutor into national spotlight

FOR SUBSCRIBERSAbdul El-Sayed tries to woo MAHA voters as Democrats seek inroads with RFK’s supporters

FOR SUBSCRIBERSKratom-like substances are popping up in a typically benign supplement

FOR SUBSCRIBERSGOP super PAC increases its spending for Sen. Jon Husted in tough Ohio race

FOR SUBSCRIBERSRecords reveal tumultuous marriage between slain New York Times executive and wife

FOR SUBSCRIBERSFrom clean energy warrior to ‘wall of shame,’ James Talarico reverses on a fossil fuel money pledge

FOR SUBSCRIBERSCongressional staff planned official trip with luxury stops in Italy and France weeks before election

FOR SUBSCRIBERSA harrowing ordeal aboard an Israel-bound plane

FOR SUBSCRIBERSOpenAI CEO Sam Altman to skip congressional hearing on rogue AI agents

FOR SUBSCRIBERSKey DOJ lawyers departed Trump ‘grand conspiracy’ probe amid pressure to produce, source says

FOR SUBSCRIBERSTrump’s new AI chatbot often links to a site launched under Clinton 26 years ago

FOR SUBSCRIBERSAt MAHA summit, industry CEOs the movement once vilified take the stage

FOR SUBSCRIBERSThis Paralympian has two goals: Win medals and give away $500,000 to her teammates

FOR SUBSCRIBERSCornell rape allegation spotlights stringent New York state laws that have long drawn criticism

For Subscribers

FOR SUBSCRIBERSAmerican passenger drafted goodbye texts to her family as Flydubai plane plummeted

FOR SUBSCRIBERSCornell rape allegation pushes embattled New York prosecutor into national spotlight

FOR SUBSCRIBERSAbdul El-Sayed tries to woo MAHA voters as Democrats seek inroads with RFK’s supporters

FOR SUBSCRIBERSKratom-like substances are popping up in a typically benign supplement

FOR SUBSCRIBERSGOP super PAC increases its spending for Sen. Jon Husted in tough Ohio race

FOR SUBSCRIBERSRecords reveal tumultuous marriage between slain New York Times executive and wife

FOR SUBSCRIBERSFrom clean energy warrior to ‘wall of shame,’ James Talarico reverses on a fossil fuel money pledge

FOR SUBSCRIBERSCongressional staff planned official trip with luxury stops in Italy and France weeks before election

FOR SUBSCRIBERSA harrowing ordeal aboard an Israel-bound plane

FOR SUBSCRIBERSOpenAI CEO Sam Altman to skip congressional hearing on rogue AI agents

FOR SUBSCRIBERSKey DOJ lawyers departed Trump ‘grand conspiracy’ probe amid pressure to produce, source says

FOR SUBSCRIBERSTrump’s new AI chatbot often links to a site launched under Clinton 26 years ago

FOR SUBSCRIBERSAt MAHA summit, industry CEOs the movement once vilified take the stage

FOR SUBSCRIBERSThis Paralympian has two goals: Win medals and give away $500,000 to her teammates

FOR SUBSCRIBERSCornell rape allegation spotlights stringent New York state laws that have long drawn criticism

1. Trump, Clinton Build Steam With Big Super Tuesday Wins

Republican Donald Trump and Democrat Hillary Clinton closed in on their party's presidential nominations by sweeping several states on Super Tuesday, though the rest of the field showed no signs of clearing the way for them just yet. Read more in POLITICS.

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Trump Celebrates Super Tuesday Wins

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2. GOP Nears Breaking Point as Trump Rolls Toward Nod

Trump is on the verge of winning the Republican nomination, and the GOP is plummeting into a civil war that promises to redefine the party — or destroy it entirely. That's the outcome of Super Tuesday, a night in which Trump dominated from deep blue Massachusetts to deep red Alabama. Read more in POLITICS.

3. Clinton Hauls in Delegates But Sanders Won’t Surrender

The former secretary of state took a decisive step toward locking down the Democratic presidential nomination on Super Tuesday — and likely racking up enough delegates to greatly foreclose Bernie Sanders' path to the presidential nomination. Read more in POLITICS.

4. Six New Jersey Newspapers Call for Christie’s Resignation

Hit the road, Chris Christie — or face a recall. That's the message of a joint editorial Tuesday from six New Jersey newspapers that say Gov. Christie has no standing in the state following his endorsement last week of Trump. Read more in POLITICS.

5. Apple Files Formal Objection in iPhone Battle

The tech giant filed a formal objection late Tuesday in its case involving an FBI request to unlock an iPhone used by one of the San Bernardino shooters. Read more in TECH.

6. Supreme Court Takes Up Texas Abortion Case

The U.S. Supreme Court on Wednesday takes up one of the most important abortion cases in decades, the first high-profile issue to be heard since Antonin Scalia's death left the court with eight justices. Read more in NEWS.

7. After Nearly Year in Space, NASA’s Kelly Is Home

Welcome back, astronaut Scott Kelly. With almost a full year on the International Space Station floating 250 miles above the Earth, Kelly has set a record for an American space explorer in terms of days in space: a whopping 520 over his entire career. Read more in NEWS.

8. Is CIA Chief Joking About Spies Not Stealing Secrets?

Former CIA officers are expressing exasperation over director John Brennan's recent remark that "we don't steal secrets." Brennan told NPR last week that he objects to the idea that the CIA engages in theft. Read more in INVESTIGATIONS.