cryptocurrencies, digital money with no backing by the central bank. bitcoin has inspired scammers to promote fake schemes like using online ads to mine crypto-currency. google removed more than 130 million ads last year. of the new policy follows facebook. it also blocked all cryp crypto-occurrence ads in january. john oliver said, crypto-currency is everything you don't know about technology merged with everything you don't know about money. a terrible combination for most. >> john oliver often moves the needle in stories we didn't understand prior. "early start" begins with the latest from the pennsylvania special election, not looking good for republicans. it took a little longer than we thought, but we did it. >> we're still fighting the fight. it's not over yet. >> no official result in