billionaire media tycoon and mayor of san francisco. vp @foundersfund. ringleader @hereticon. editor-in-chief @ pirate wires 
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come on. This isn't about "meeting challenges", he literally promises to cure cancer if he's elected president. That isn't "ambition". That's a lie. He's lying. We're not going to cure cancer in 8 years.
If you can't tell the difference between these two promises, you don't know enough history or enough science to be able to make this comparison.
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