[41] Adelson's company was reportedly under federal investigation over alleged violations of the Foreign Corrupt Practices Act relating to payments made to a Macau lawyer.

In May 2006, Adelson's Las Vegas Sands was awarded a hotly contested license to construct a casino resort in Marina Bay, Singapore.

[45] MBS Singapore includes stores at "The Shoppes", an ultraluxury indoor Venetian canal-lined exclusive shopping belt with tenants such as Ferrari, Chanel, the Theatre of Marina Bay and Convention Center for Sands Live concert series, multiple swimming pools, a rooftop infinity pool, night clubs in Maison pavilions on newly constructed mini islands, and 2,500 luxury hotel rooms.

The purchase was made through a limited liability company called News + Media Capital Group LLC and his involvement with the deal was initially kept secret.

[56] Commentators described the $140 million paid for the paper as "lavish" and as a dramatic overpayment, and speculated that the move was a power play to further Adelson's business or political agendas.

[58] In January 2016, a set of editorial principles were drawn up and publicized to ensure the newspaper's independence and to deal with possible conflicts of interest involving Adelson's ownership.

[59] In the months since, reporters say that stories about Adelson, and particularly about an ongoing lawsuit involving his business dealings in Macau, have been heavily edited by top management.

[60] Many reporters and editors left the newspaper citing "curtailed editorial freedom, murky business dealings and unethical managers.

[62][63] In a panel discussion at Yeshiva University on October 22, 2013, Adelson said that the United States must get tougher on the issue of Iran's suspected nuclear weapons program.

He said: "You pick up your cell phone and you call somewhere in Nebraska and you say 'OK, let it go' and so there's an atomic weapon goes over, ballistic missiles in the middle of the desert that doesn't hurt a soul, maybe a couple of rattlesnakes and scorpions or whatever".

[66] During the Suen trial, Bill Weidner, the president of Adelson's Las Vegas Sands company, testified about a telephone conversation between Adelson and his friend then-House Majority Leader Tom DeLay (R-TX) about a bill proposed by Representative Tom Lantos (D) that would have prevented the U.S. Olympic Committee from voting in favor of the Chinese bid to host the 2008 Summer Olympics.

Adelson testified in court that the demise of the resolution "resulted from the press of other legislation, [not from] a deliberate move by DeLay to help his benefactor.

[69] At the November 2017 conference of the Israeli-American Council (IAC), Adelson declared that the organization should become primarily a political lobbying group on Israel-related issues.

[70] Israeli journalist Chemi Shalev said that IAC had not intended to become a political pressure group and that Adelson had "hijacked" it for his "hard-right agenda".

[76] According to The New Yorker, Adelson began making major contributions to the Republican National Committee following clashes with labor unions at his Las Vegas properties.

[26][77] Berkley is further quoted in The New Yorker article as saying that Adelson "seeks to dominate politics and public policy through the raw power of money".

[79][80][81] President George W. Bush appointed the Adelsons to serve on the Honorary Delegation to accompany him to Jerusalem for the celebration of the 60th anniversary of the State of Israel in May 2008.

[83] In 2010, Adelson donated $1 million to American Solutions for Winning the Future, a political action committee (PAC) supporting Republican former Speaker of the House Newt Gingrich.

[89] By the next day, the super PAC had reserved more than $3.4 million in advertising time in the South Carolina primary, which included production and distribution of a half-hour movie that portrayed Gingrich's political rival Mitt Romney as a "predatory corporate raider".

[69] According to a 2014 Washington Post report, Adelson's strategy for the 2016 United States presidential election was to support a mainstream candidate capable of winning the presidency.

[106] For the 2018 United States elections, Adelson donated approximately $113 million to the Republican Party through various conservative political action committees.

[113] On January 31, 2019, ABC News reported that Adelson and his wife Miriam had contributed $500,000 to the Patriot Legal Expense Fund Trust, which was set up in 2018 to assist aides of President Trump under investigation by special counsel Robert Mueller's probe into Russian interference in the 2016 United States elections.

[126] This foundation initiated the Adelson Program in Neural Repair and Rehabilitation (APNRR) with $7.5 million donated to collaborating researchers at 10 universities.

[128] Miriam "Miri" Farbstein was born in Mandatory Palestine in 1945, to parents that fled Poland before the Holocaust and settled in the city of Haifa.

[26] In February 2013, the Las Vegas Sands, in a regulatory filing, acknowledged that it had likely violated federal law that prohibits the bribing of foreign officials.

[138] In August 2012, the Democratic Congressional Campaign Committee (DCCC), after being threatened with a libel suit, apologized and withdrew two blog posts that claimed Adelson had donated "Chinese prostitution money" to Republicans.

[139] Another organization, the National Jewish Democratic Council, posted on their website that Adelson "personally approved" of prostitution at his Macau resorts.

[150] In 2013, Adelson earned a top ranking on Forbes' Annual "Biggest Winner" List, his dramatic growth a result of the success of his casinos in Macau and Singapore, adding an estimated $15 billion to his net worth during the year.

[158] The news was disclosed after a Sands attorney claimed Adelson was too weak to sit for a deposition in a court case involving Richard Suen.

[163] His coffin was draped in U.S. and Israeli flags and was on display at Ben Gurion Airport,[163] where Prime Minister Benjamin Netanyahu came to pay his respects.