Barack Obama

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FILE This Feb. 17, 2009 file photo shows President Barack Obama picking up the first pen to sign the economic stimulus bill during a ceremony in the Museum of Nature and Science in Denver. The White House says a costly spending bill President Barack Obama signed into law five years ago Monday was good for the economy and helped the U.S. avoid another Great Depression. (AP Photo/David Zalubowski, File)

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With potentially-explosive shipments increasing 40-fold in recent years as North American crude production booms, the railroad industry, at the urging of the Obama administration and safety officials in the U.S. and Canada, is considering a closer look at the risks posed by trains that now carry hazardous liquids through every region of the country. (AP Photo/Matthew Brown, File)

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A golf cart awaits passengers at The Annenberg Retreat at Sunnylands, Rancho Mirage, Calif., where President Barack Obama is playing golf according to White House officials, on Saturday, Feb. 15, 2014.With two stays in less than a year at the sprawling Sunnylands estate in Southern California, President Barack Obama is helping to fulfill the dream of the late philanthropists Walter and Leonore Annenberg, who hoped the property they used as a winter home would become the “Camp David of the West.” (AP Photo/Jacquelyn Martin)

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Golf carts await passengers at The Annenberg Retreat at Sunnylands, Rancho Mirage, Calif., where President Barack Obama is playing golf according to White House officials, on Saturday, Feb. 15, 2014. With two stays in less than a year at the sprawling Sunnylands estate in Southern California, President Barack Obama is helping to fulfill the dream of the late philanthropists Walter and Leonore Annenberg, who hoped the property they used as a winter home would become the “Camp David of the West.”(AP Photo/Jacquelyn Martin)

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FILE - In a Monday, Feb. 10, 2014 file photo, Kenyan gays and lesbians and others supporting their cause wear masks to preserve their anonymity and one holds out a wrapped condom, as they stage a rare protest, against Uganda's increasingly tough stance against homosexuality in solidarity with their counterparts there, outside the Uganda High Commission in Nairobi, Kenya. President Barack Obama says in a statement provided Sunday, Feb. 15, 2014 that pending steps by Uganda to further criminalize homosexuality will complicate what he is describing as America's valued relationship with the East African nation. Museveni said Friday that he plans to sign a bill into law that prescribes life imprisonment for what they term as "aggravated" homosexual acts.(AP Photo/Ben Curtis)

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The view from inside the Sunnylands Center & Gardens at The Annenberg Retreat at Sunnylands, Rancho Mirage, Calif., where President Barack Obama is playing golf according to White House officials, on Saturday, Feb. 15, 2014. With two stays in less than a year at the sprawling Sunnylands estate in Southern California, President Barack Obama is helping to fulfill the dream of the late philanthropists Walter and Leonore Annenberg, who hoped the property they used as a winter home would become the “Camp David of the West.” (AP Photo/Jacquelyn Martin)

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President Barack Obama speaks to the media, Friday, Feb. 14, 2014 in Los Banos, Calif. Farmers in California's drought-stricken Central Valley said the financial assistance President Barack Obama delivered on his visit Friday does not get to the heart of California's long-term water problems. (AP Photo/Los Angeles Times, Wally Skalij, Pool)

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President Barack Obama speaks to the media on California's drought situation Friday, Feb. 14, 2014 in Los Banos, Calif. Farmers in California's drought-stricken Central Valley said the financial assistance President Barack Obama delivered on his visit Friday does not get to the heart of California's long-term water problems. (AP Photo/Los Angeles Times, Wally Skalij, Pool)

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President Barack Obama walks with California Governor Jerry Brown, left and Joe and Maria Gloria Del Bosque, right while touring Empresas Del Bosque farm addressing California's drought situation Friday, Feb. 14, 2014 in Los Banos, Calif. Farmers in California's drought-stricken Central Valley said the financial assistance President Barack Obama delivered on his visit Friday does not get to the heart of California's long-term water problems. (AP Photo/Los Angeles Times, Wally Skalij, Pool)

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California Governor Jerry Brown, right, President Barack Obama and Joe Del Bosque, of Empresas Del Bosque farm speak about California's drought, Friday, Feb. 14, 2014 in Los Banos, Calif. Farmers in California's drought-stricken Central Valley said the financial assistance President Barack Obama delivered on his visit Friday does not get to the heart of California's long-term water problems. (AP Photo/Los Angeles Times, Wally Skalij, Pool)

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A sercret service agent looks over a farm field as President Barack Obama speaks to the media on California's drought situation Friday, Feb. 14, 2014 in Los Banos, Calif. Farmers in California's drought-stricken Central Valley said the financial assistance President Barack Obama delivered on his visit Friday does not get to the heart of California's long-term water problems. (AP Photo/Los Angeles Times, Wally Skalij, Pool)

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President Barack Obama, right, meets with Jordan's King Abdullah II at The Annenberg Retreat at Sunnylands, Rancho Mirage, Calif., Friday, Feb. 14, 2014. (AP Photo/Jacquelyn Martin)

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President Barack Obama, right, greets Jordan's King Abdullah II at The Annenberg Retreat at Sunnylands, Rancho Mirage, Calif., Friday, Feb. 14, 2014. (AP Photo/Jacquelyn Martin)

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President Barack Obama, gesturing at center of group, arrives to take part in a roundtable with community leaders at San Luis Water Facility in Firebaugh, Calif., Friday, Feb. 14, 2014. (AP Photo/Jacquelyn Martin)

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President Barack Obama, third from left, speaks during a roundtable with community leaders including California Gov. Jerry Brown, and Sen. Barbara Boxer, D-Calif., right, at San Luis Water Facility in Firebaugh, Calif., Friday, Feb. 14, 2014, regarding the ongoing drought. (AP Photo/Jacquelyn Martin)

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President Barack Obama, left, speaks during a roundtable with community leaders including California Gov. Jerry Brown, and Sen. Barbara Boxer, D-Calif., at San Luis Water Facility in Firebaugh, Calif., Friday, Feb. 14, 2014, regarding the ongoing drought. (AP Photo/Jacquelyn Martin)