Question: What candidate of the United States Senate election in Iowa, 1998 is the current chairman of the Judiciary Committee of the 115th congress?

Context paragraphs:
United States Senate Committee on the Judiciary: The United States Senate Committee on the Judiciary, informally the Senate Judiciary Committee, is a standing committee of the United States Senate, of the United States Congress.  The Judiciary Committee, with 20 members, is in charge of conducting hearings prior to the Senate votes on confirmation of federal judges (including Supreme Court justices) nominated by the President, as well as presidential appointments in the Department of Justice.  In recent years, this role has made the committee increasingly a point of contention, with numerous party-line votes and standoffs over which judges should be approved.  The committee also has a broad jurisdiction over matters relating to federal criminal law, as well as human rights, immigration law, intellectual property rights, antitrust law, and Internet privacy.  It is also Senate procedure that all proposed Constitutional Amendments pass through the Judiciary Committee.

Democratic Caucus of the United States Senate: The Democratic Caucus of the United States Senate (sometimes referred to as the Democratic Conference) is the formal organization of all senators who are part of the Democratic Party in the United States Senate.  For the makeup of the 115th Congress, the Conference additionally includes two independent senators (Bernie Sanders of Vermont and Angus King of Maine) who formally caucus with the Democrats for the purpose of committee assignments and structural organization, bringing the current total to 48 members.  The central organizational front for Democrats in the Senate, its primary function is communicating the party's message to all of its members under a single banner.

Bill Clinton judicial appointment controversies: During President Bill Clinton's first and second terms of office, he nominated 24 people for 20 federal appellate judgeships but the nominees were not processed by the Republican-controlled Senate Judiciary Committee.  Three of the nominees who were not processed (Christine Arguello, Andre M. Davis and S. Elizabeth Gibson) were nominated after July 1, 2000, the traditional start date of the unofficial Thurmond Rule during a presidential election year.  Democrats claim that Senate Republicans of the 106th Congress purposely tried to keep open particular judgeships as a political maneuver to allow a future Republican president to fill them.  Of the 20 seats in question, four were eventually filled with different Clinton nominees, fourteen were later filled with Republican nominees by President George W. Bush and two continued to stay open during Bush's presidency.  Senator Harry Reid, the Democratic leader of the United States Senate during the 110th Congress, and Senator Patrick Leahy, the Democratic leader of the Senate Judiciary Committee under Reid, repeatedly mentioned the controversy over President Clinton's court of appeals nominees during the controversy involving the confirmation of Republican court of appeals nominees during the last two years of Bush's second term.  Republicans claimed that Democrats were refusing to confirm certain longstanding Bush nominees in order to allow a future Democratic president in 2009 to fill those judgeships.

Email Privacy Act: 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.

Chuck Grassley: Charles Ernest Grassley (born September 17, 1933) is the senior United States Senator from Iowa, serving since 1981.  A member of the Republican Party, he previously served in the United States House of Representatives (1975–1981) and the Iowa state legislature (1959–1974).  He was chairman of the Senate Finance Committee from January to June 2001, as well as from January 2003 to December 2006, and is now the current chairman of the Judiciary Committee of the 115th congress.

Thomas Jipping: Thomas L. Jipping is Chief Counsel to U.S. Senator Orrin Hatch (R-UT) on the Senate Judiciary Committee.  He joined Senator Hatch's legislative office staff in 2003 and was promoted to his Judiciary Committee staff in 2007.  In 2010, he served as Deputy Chief Counsel and Deputy Staff Director of the Senate Impeachment Trial Committee, created to conduct the impeachment trial of U.S. District Judge G. Thomas Porteous.  Prior to his current post, Jipping was Senior Fellow in Legal Studies at Concerned Women for America and, from 1990-2002, Vice-President for Legal Policy and Director of the Center for Law & Democracy at the Free Congress Foundation, where he directed the Judicial Selection Monitoring Project.

United States Senate election in Iowa, 1998: The 1998 United States Senate election in Iowa was held on November 3, 1998.  Incumbent Republican United States Senator Chuck Grassley sought re-election to a fourth term in the United States Senate, facing off against former State Representative David Osterberg, who won the Democratic nomination unopposed.  Grassley had not faced a competitive election since 1980; this year proved no different, and Grassley crushed Osterberg to win a fourth term.

80th United States Congress: The Eightieth United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives.  It met in Washington, DC from January 3, 1947, to January 3, 1949, during the third and fourth years of Harry Truman's presidency.  The apportionment of seats in this House of Representatives was based on the Sixteenth Census of the United States in 1940.  Republicans gained a majority in both chambers for this Congress having gained thirteen Senate seats and fifty-seven House seats.  Although the 80th Congress passed a total of 906 public bills, President Truman nicknamed it the "Do Nothing Congress" and, during the 1948 election, campaigned as much against it as against his formal opponent, Thomas Dewey.  The 80th Congress passed several significant pro-business bills, most famously the Taft–Hartley Act, but it opposed most of Truman's Fair Deal bills.  Truman's campaign strategy worked, and the Republicans lost nine Senate seats and seventy-three seats in the House, allowing the Democrats to begin the 81st Congress with twenty-one more seats than they had at the end of the 79th Congress.

Administrative Law, Process and Procedure Project: The Administrative Law, Process and Procedure Project (the Project) is a bipartisan undertaking of the Committee on the Judiciary of the House of Representatives of the United States Congress.  It consists of a comprehensive study of the state of administrative law, process and procedure in the United States.  A description of the Project was included in the Judiciary Committee's Oversight Plan for the 109th Congress, as approved by the Committee on January 26, 2005.  The Project will culminate with the preparation of a detailed report with recommendations for legislative proposals and suggested areas for further research and analysis to be considered by the Administrative Conference of the United States (ACUS).  House Judiciary Committee Chairman F. James Sensenbrenner, Jr. (R-WI) and Ranking Member John Conyers (D-MI) requested the Congressional Research Service (CRS) to assist Representative Chris Cannon (R-UT), the Chairman of the Subcommittee on Commercial and Administrative Law (CAL), in conducting the Project, which is anticipated to be completed by September 2006.

Employee Rights Act: The Employee Rights Act (S.1874), or ERA, is a bill re-introduced to the 115th Congress in the United States Senate on September 7, 2017 by Sen. Orrin G. Hatch [R-UT] and 14 co-sponsors.  The bill was referred to the United States Senate Committee on Health, Education, Labor and Pensions.  It is the successor to bills first introduced in the 112th Congress of the same name, also sponsored by Sen. Hatch and then-Rep.  (now Senator) Tim Scott of South Carolina.

Supporting paragraphs: United States Senate election in Iowa, 1998 Chuck Grassley
Answer: Chuck Grassley