Question: Which former Chairman of the National Republican Senatorial Committee derailed the Email Privacy Act after it was passed in the 114th Congress?

Context articles: John Cornyn
Protecting Cyber Networks Act
Patrick Davis (politics)
Philip S. Smith
United States Senate election in Alaska, 2008
Jerry Moran
National Republican Senatorial Committee
Alex Skatell
James Graham (North Carolina)
Email Privacy Act

John Cornyn III (born February 2, 1952) is an American politician, lawyer and the senior United States Senator from Texas, serving since 2002.
 He is a member of the Republican Party and the current Senate Majority Whip for the 115th Congress.
 Cornyn previously served as Chairman of the National Republican Senatorial Committee from 2007 to 2011.
The Protecting Cyber Networks Act (H.R. 1560) is a bill introduced in the 114th Congress by Rep. Devin Nunes (R-CA), chairman of the House Permanent Select Committee on Intelligence.
 The legislation would allow companies and the government to share information concerning cyber threats.
 To overcome privacy concerns, the bill expressly forbids companies from sharing information with the National Security Agency (NSA) or Department of Defense (DOD).
Patrick Davis is a political consultant and strategist.
 Davis has worked in the George H.W. Bush Administration and the National Republican Senatorial Committee, most notably as Political Director in 2004.
 Davis also served as the Executive Director of the South Dakota Republican Party before going into private business in 2005.
 He lives in Colorado Springs, Colorado, with his wife, Jo Ann, and their two children.
Philip S. Smith is an American entrepreneur who has served on the Republican National Committee and the National Republican Senatorial Committee.
 He founded the fundraising organization CAPTEL.
The 2008 United States Senate election in Alaska was held on November 4, 2008.
 Incumbent Republican U.S. Senator and former President pro tempore Ted Stevens ran for re-election to a seventh term in the United States Senate.
 It was one of the ten Senate races that U.S. Senator John Ensign of Nevada, the chairman of the National Republican Senatorial Committee, predicted as being most competitive.
 The primaries were held on Tuesday, August 26.
 Ted Stevens was challenged by Democratic candidate Mark Begich, the mayor of Anchorage.
Gerald W. Moran (born May 29, 1954) is the junior United States Senator from Kansas and a member of the Republican Party.
 He served as Chairman of the National Republican Senatorial Committee for the 113th U.S. Congress, during which he led successful Republican efforts in United States Senate elections, 2014, producing the first Republican Senate majority since 2006.
 Previously, he served as a member of the United States House of Representatives, representing 2=nd
The National Republican Senatorial Committee (NRSC) is the Republican Hill committee for the United States Senate, working to elect Republicans to that body.
 The NRSC was founded in 1916 as the Republican Senatorial Campaign Committee.
 It was reorganized in 1948, and renamed the National Republican Senatorial Committee.
Alex Skatell is an American entrepreneur and former political advisor.
 He was previously the Digital Director for the Republican Governors Association and Media Director of the National Republican Senatorial Committee.
 He developed the software application iShout which became a top 25 game in the iPhone App Store.
 He also founded the viral news website "Independent Journal Review".
James Graham (January 7, 1793 – September 25, 1851) a Congressional Representative from North Carolina; born in Lincoln County, North Carolina, January 7, 1793; brother of William Alexander Graham; pursued classical studies and graduated from the University of North Carolina at Chapel Hill in 1814; studied law; was admitted to the bar in 1818 and commenced practice in Rutherford County, North Carolina; member of the State house of representatives in 1822, 1823, 1824, 1828, and 1829; elected as a National Republican to the Twenty-third Congress (March 4, 1833 – March 3, 1835); presented credentials as a National Republican Member-elect to the Twenty-fourth Congress and served from March 4, 1835, to March 29, 1836, when the seat was declared vacant; subsequently elected as a National Republican to the same Congress; reelected as a Whig to the Twenty-fifth, Twenty-sixth, and Twenty-seventh Congresses and served from December 5, 1836, to March 3, 1843; chairman, Committee on Public Expenditures (Twenty-seventh Congress); unsuccessful candidate for reelection in 1842 to the Twenty-eighth Congress; elected as a Whig to the Twenty-ninth Congress (March 4, 1845 – March 3, 1847); was not a candidate for renomination in 1846; engaged in agricultural pursuits near Rutherfordton, North Carolina, where he died September 25, 1851.
The Email Privacy Act is a bill introduced in the United States Congress.
 The bipartisan proposed federal law is sponsored by Representative Kevin Yoder, a Republican from Kansas, and Representative Jared Polis, a Democrat of Colorado.
 The law is designed to update and reform existing online communications law, specifically the Electronic Communications Privacy Act (ECPA) of 1986.
 In the 113th Congress (2013-14), the bill never made it out of subcommittee.
 In the 114th Congress (2015-16), the bill was unanimously passed by the House, but was derailed in the Senate following a series of weakening amendments offered by Republican Senator John Cornyn of Texas, the Senate Majority Whip.
 In the 115th Congress (2017-18), it was passed by the House on a voice vote.