Question: Which Republican nominee for President was well known for prosecuting organized crime?

Context articles: San Jose crime family
Mafia Commission Trial
United States Organized Crime Strike Force
Lebanese mafia
Detlev Mehlis
Thomas E. Dewey
Hugh B. Lindsay
Douglas Forrester
Murder, Inc.
United States presidential election, 1948

The Cerrito Crime Family also known as San Jose Crime Family was one of the two families that controlled organized crime in San Jose, California, within the nationwide criminal organization known as the Mafia (or La Cosa Nostra).
 The other family that ran organized crime in San Jose was the Bonanno crime family of New York.
The Mafia Commission Trial (February 25, 1985 – November 19, 1986), officially known as United States v. Anthony Salerno, et al., was a criminal trial in New York City, United States.
 Using evidence obtained by the Federal Bureau of Investigation, eleven organized crime figures, including the heads of New York's so-called "Five Families," were indicted by United States Attorney Rudolph Giuliani under the Racketeer Influenced and Corrupt Organizations Act (RICO) on charges including extortion, labor racketeering, and murder for hire.
 The case struck a blow against "The Commission," a loose organization of the New York Mafia organizations that met to resolve disputes or discuss criminal activities, sometimes likened to organized crime's board of directors.
 "Time" magazine called this "Case of Cases" possibly "the most significant assault on the infrastructure of organized crime since the high command of the Chicago Mafia was swept away in 1943," and quoted Giuliani's stated intention: "Our approach... is to wipe out the five families."
The United States Organized Crime Strike Force was created in the late 1960s for the purpose of finding and prosecuting illegal racketeering.
 It was formed in a congressional effort led by Senator Robert Kennedy.
Lebanese mafia is a colloquial term for organized crime groups of Lebanese origin.
 Lebanese organized crime is active in the country of Lebanon itself, as well as in countries and areas with a large Lebanese community, most notably Australia, Germany and in the Triple Frontier in South America.
 Lebanese organized crime syndicates generally are active globally, largely due to the mass Lebanese diaspora.
Detlev Mehlis (born 1949) is the Senior Public Prosecutor in the Office of the Attorney General in Berlin.
 He has 30 years of prosecutorial experience and has led numerous investigations into serious, complex transnational crimes.
 He has been a senior public prosecutor since 1992 and has, over the course of his career, been responsible for prosecuting terrorism and organized crime cases.
 Most notably, he investigated the bombing on the discotheque La Belle in then West-Berlin in 1986, which claimed the life of two US soldiers and a Turkish woman, and uncovered the involvement of the Libyan intelligence service.
 He also proved the involvement of the terrorist Carlos and Syrian diplomats in the attack on the French culture centre Maison de France, also in West-Berlin, in 1983, as well as the involvement of Syrian intelligence services in the bombing of a German-Arab social center in Berlin in 1986.
 Since 1998, Mehlis has been the Chief of the Contact Office of the European Judicial Network and Coordinator for the fight against organized crime in the State of Berlin.
Thomas Edmund Dewey (March 24, 1902 – March 16, 1971) was an American lawyer, prosecutor, and politician.
 He served as the 47th Governor of New York from 1943 to 1954.
 In 1944, he was the Republican Party's nominee for President.
 He lost the 1944 election to President Franklin D. Roosevelt in the closest of Roosevelt's four presidential elections.
 He was again the Republican presidential nominee in 1948, but lost to President Harry S. Truman in one of the greatest upsets in presidential election history.
 Dewey played a large role in winning the Republican presidential nomination for Dwight D. Eisenhower in 1952, and helped Eisenhower win the presidential election that year.
 He also played a large part in the choice of Richard M. Nixon as the Republican vice-presidential nominee in 1952 and 1956.
Hugh Barton Lindsay (November 3, 1856 – July 21, 1944) was an American attorney, jurist and politician in Tennessee, who was appointed as United States Attorney for the Eastern District, serving from 1889 to 1893, and judge of Tennessee's Second Chancery District from 1894 to 1899.
 He was the Republican nominee for Governor of Tennessee in 1918, losing to Albert H. Roberts, as well as the Republican nominee for United States Senator in 1924, losing to Lawrence Tyson.
 As an attorney, Lindsay helped ALCOA become established as an industry in the region in the 1910s.
 He also helped launch the movement in the 1920s to create and preserve Great Smoky Mountains National Park.
Douglas "Doug" Forrester (born January 24, 1953 in Glendale, California) is an American businessman from New Jersey.
 He was the 2002 Republican nominee for New Jersey U.S. Senator and the 2005 Republican nominee for Governor of New Jersey.
 Forrester was defeated by his two Democratic opponents, Frank Lautenberg and then-U.S. Senator Jon Corzine, respectively.
 Forrester currently serves as the president of Integrity Health, a health benefits management firm.
Murder, Inc. (or Murder Incorporated) was the name the news media gave to organized crime groups in the 1930s and 40s that acted as the enforcement arm of the Italian-American Mafia, Jewish mob, and connected organized crime groups in New York and elsewhere.
 The groups were largely composed of Italian-American and Jewish gangsters from the Brooklyn neighborhoods of Brownsville, East New York, and Ocean Hill.
 Originally headed by Louis "Lepke" Buchalter, and later by Albert "The Mad Hatter" Anastasia, Murder, Inc. was believed to be responsible for between 400 and 1,000 contract killings, until the group was exposed in the early 1940s by former group member Abe "Kid Twist" Reles.
 In the trials that followed, many members were convicted and executed, and Abe Reles himself died after "falling out of a window".
 Thomas E. Dewey first came to prominence as a prosecutor of Murder, Inc. and other organized crime cases.
The United States presidential election of 1948 was the 41st quadrennial presidential election, held on Tuesday, November 2, 1948.
 Incumbent President Harry S. Truman, the Democratic nominee, who had succeeded to the presidency after the death of President Franklin D. Roosevelt in 1945, successfully ran for election for a full term against Thomas E. Dewey, the Republican nominee, who also was the Republican presidential nominee in 1944.