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WASHINGTON, DC - SEPTEMBER 28: Senate Judiciary Committee Chairman Charles Grassley (R-IA) uses the stop watch on his iPhone to keep track of committee members' speaking time during a mark up hearing about Supreme Court nominee Judge Brett Kavanaugh in the Dirksen Senate Office Building on Capitol Hill September 28, 2018 in Washington, DC. The committee agreed to an additional week of investigation into accusations of sexual assault against Kavanaugh before the full Senate votes on his confirmation. A day earlier the committee heard from Kavanaugh and Christine Blasey Ford, a California professor who who has accused Kavnaugh of sexually assaulting her during a party in 1982 when they were high school students in suburban Maryland. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 28: Senate Judiciary Committee Chairman Charles Grassley (R-IA) uses the stop watch on his iPhone to keep track of committee members' speaking time during a mark up hearing about Supreme Court nominee Judge Brett Kavanaugh in the Dirksen Senate Office Building on Capitol Hill September 28, 2018 in Washington, DC. The committee agreed to an additional week of investigation into accusations of sexual assault against Kavanaugh before the full Senate votes on his confirmation. A day earlier the committee heard from Kavanaugh and Christine Blasey Ford, a California professor who who has accused Kavnaugh of sexually assaulting her during a party in 1982 when they were high school students in suburban Maryland. (Photo by Chip Somodevilla/Getty Images)

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WASHINGTON, DC - MAY 21: Apple CEO Timothy Cook (L) and Apple head of tax operations Phillip Bullock are sworn in before testifying to the Senate Homeland Security and Governmental Affairs Committee's Investigations Subcommittee about the company's offshore profit shifting and tax avoidance in the Dirksen Senate Office Building on Capitol Hill May 21, 2013 in Washington, DC. A Congressional report released yesterday said that Apple, America's most profitable technology company, used a complex system of international subsidiaries and tax avoidance efforts to shift at least $74 billion out of the reach of the Internal Revenue Service between 2009 and 2012. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MAY 21:  Apple CEO Timothy Cook (L) and Apple head of tax operations Phillip Bullock are sworn in before testifying to the Senate Homeland Security and Governmental Affairs Committee's Investigations Subcommittee about the company's offshore profit shifting and tax avoidance in the Dirksen Senate Office Building on Capitol Hill May 21, 2013 in Washington, DC. A Congressional report released yesterday said that Apple, America's most profitable technology company, used a complex system of international subsidiaries and tax avoidance efforts to shift at least $74 billion out of the reach of the Internal Revenue Service between 2009 and 2012.  (Photo by Chip Somodevilla/Getty Images)

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CUPERTINO, CALIFORNIA - SEPTEMBER 12: Phil Schiller, senior vice president of worldwide marketing at Apple Inc., speaks at an Apple event at the Steve Jobs Theater at Apple Park on September 12, 2018 in Cupertino, California. Apple is expected to announce new iPhones with larger screens as well as other product upgrades. (Photo by Justin Sullivan/Getty Images)

CUPERTINO, CALIFORNIA - SEPTEMBER 12: Phil Schiller, senior vice president of worldwide marketing at Apple Inc., speaks at an Apple event  at the Steve Jobs Theater at Apple Park on September 12, 2018 in Cupertino, California. Apple is expected to announce new iPhones with larger screens as well as other product upgrades.  (Photo by Justin Sullivan/Getty Images)

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LONDON, ENGLAND - OCTOBER 14: A man uses 'Siri' on the new iPhone 4S after being one of the first customers in the Apple store in Covent Garden on October 14, 2011 in London, England. The widely anticipated new mobile phone from Apple has seen customers queue in cities around the world for hours to be amongst the first to buy the device. (Photo by Oli Scarff/Getty Images)

LONDON, ENGLAND - OCTOBER 14:  A man uses 'Siri' on the new iPhone 4S after being one of the first customers in the Apple store in Covent Garden on October 14, 2011 in London, England. The widely anticipated new mobile phone from Apple has seen customers queue in cities around the world for hours to be amongst the first to buy the device.    (Photo by Oli Scarff/Getty Images)