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Native Hawaiians (Hawaiian: kanaka 'oiwi, kanaka maoli, and Hawai'i maoli) are the aboriginal Polynesian people of the Hawaiian Islands or their descendants. Native Hawaiians trace their ancestry back to the original Polynesian settlers of Hawaii. According to the U.S. Census Bureau report for 2000, there are 401,000 people who identified themselves as being "Native Hawaiian" alone or in combination with one or more other races or Pacific Islander groups. 141,000 people identified themselves as being "Native Hawaiian" alone.
Another important outgrowth of the 1978 Hawai'i State Constitutional Convention was the establishment of the Office of Hawaiian Affairs, more popularly known as OHA. Delegates that included future Hawai'i political stars Benjamin J. Cayetano, John D. Waihee III, and Jeremy Harris enacted measures intended to address injustices toward native Hawaiians since the overthrow of the Kingdom of Hawai'i in 1893. OHA was established as a trust, administered with a mandate to better the conditions of both native Hawaiians and the Hawaiian community in general. OHA was given control over certain public lands, and continues to expand its land-holdings to this day (most recently with Waimea Valley, previously Waimea Falls Park). Besides purchases since its inception, the lands initially given to OHA were originally crown lands of the Kingdom of Hawai'i used to pay the expenses of the monarchy (later held by the Provisional Government following the fall of the monarchy in 1893). Upon the declaration of the Republic of Hawai'i, they were officially designated as public lands. They were ceded to federal control with the establishment of the Territory of Hawai'i in 1898, and finally returned to the State of Hawai'i as public lands in 1959. OHA is a semi-autonomous government body administered by a nine-member board of trustees, elected by the people of the State of Hawai'i through popular suffrage. Originally, trustees and the people eligible to vote for trustees were restricted to native Hawaiians. Rice v. Cayetano--suing the state to allow non-Hawaiians to sit on the board of trustees, and for non-Hawaiians to be allowed to vote in trustee elections--reached the United States Supreme Court, which ruled in favor of Rice on February 23, 2000, forcing OHA to open its elections to all residents of the State of Hawai'i, regardless of ethnicity.
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did it better the conditions?

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Duke was born in New York City, the only child of tobacco and hydroelectric power tycoon James Buchanan Duke and his second wife, Nanaline Holt Inman, widow of Dr. William Patterson Inman. At his death in 1925, the elder Duke's will bequeathed the majority of his estate to his wife and daughter, along with $17 million in two separate clauses of the will, to The Duke Endowment he had created in 1924. The total value of the estate was not disclosed, but was estimated variously at $60 million to $100 million (equivalent to $837 million to $1.395 billion in 2018), the majority culled from J.B. Duke's holds in Lucky Strike cigarettes. Duke spent her early childhood at Duke Farms, her father's 2,700-acre (11 km2) estate in Hillsborough Township, New Jersey.
Duke married twice, the first time in 1935 to James H. R. Cromwell, the son of Palm Beach society doyenne Eva Stotesbury. Cromwell, a New Deal advocate like his wife, used her fortune to finance his political career. In 1940 he served several months as U.S. Ambassador to Canada and ran unsuccessfully for the U.S. Senate. The couple had a daughter, Arden, who died one day after her birth. They divorced in 1943. On September 1, 1947, while in Paris, Duke became the third wife of Porfirio Rubirosa, a diplomat from the Dominican Republic. She reportedly paid his second wife, actress Danielle Darrieux, $1 million to agree to an uncontested divorce. Because of her great wealth, Duke's marriage to Rubirosa attracted the attention of the U.S. State Department, which cautioned her against using her money to promote political agenda. Further, there was concern that in the event of her death, a foreign government could gain too much leverage. Therefore, Rubirosa had to sign a pre-nuptial agreement; during the marriage, though, she gave Rubirosa several million dollars in gifts, including a stable of polo ponies, sports cars, a converted B-25 bomber, and, in the divorce settlement, a 17th-century house in Paris. One of Doris Duke's best friends was Brazilian socialite and "jetsetter" Aimee de Heeren. She reportedly had numerous affairs, with, among others, Duke Kahanamoku, Errol Flynn, Alec Cunningham-Reid, General George S. Patton, Joe Castro, and Louis Bromfield. Duke posted a bail of $5,000,000 for her friend, former Philippine First Lady Imelda Marcos after the latter was arrested for racketeering.
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Who was her second marriage with?

Answer:
while in Paris, Duke became the third wife of Porfirio Rubirosa,