Donald J. Trump, 72, is the 45th and current president of the United States, assuming office on Jan. 20, 2017. Trump is running on an "America First" platform that focuses on cutting taxes, restricting immigration, renegotiating or canceling international deals on trade, arms control and climate change, and withdrawing American troops from overseas.

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Amy Klobuchar, 58, is a U.S. senator from Minnesota who has championed legislation to combat the opioid crisis and address the cost of prescription drugs. She told a crowd of 225 in Dubuque March 16 that she would make infrastructure a top priority. She also supports automatic voter registration, reducing money in politics, and reinstating climate regulations.

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Andrew Yang, 44, is a former tech executive who proposes establishing a "universal basic income" of $1,000 per month for all adult Americans. Yang founded Venture for America, a nonprofit organization that trains young professionals to work for startup companies. He also worked for a healthcare startup, founded an education company and worked as an attorney.

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Bernie Sanders, 77, is an independent member of the U.S. Senate from Vermont who caucuses with the Democrats. He supports Medicare for all, the Green New Deal, a $15 minimum wage, limiting the size of banks, and tuition-free college. His tenure in the U.S. Senate and U.S. House make him the longest serving independent member of Congress in American history.

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Beto O'Rourke, 46, is a former U.S. representative from Texas and an El Paso city council member. In a March 16 visit to Dubuque he talked about universal health care, suggesting lawmakers find a way to expand Medicaid or support options to buy into public health care programs. He also favors combating climate change and creating lawful paths to work for immigrants.

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Bill Weld, 73, ran for vice president as a Libertarian in 2016 and has been critical of Donald Trump. Governor of Massachusetts from 1991 to 1997, and a former federal prosecutor at the Department of Justice's criminal division, Weld focuses his campaign on fiscal restraint, free trade and immigration reform. He has also endorsed steps to legalize marijuana nationwide.

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Bill de Blasio, 58, the Democratic mayor of New York City was first elected to that post in 2013 and won a second term in the general election of 2017. As mayor, de Blasio's key issues have included universal prekindergarten, criminal justice reform and post-recession economic recovery. De Blasio is a former New York city councilman, school board member and HUD director.

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Cory Booker, 49, is a Democratic member of the U.S. Senate from New Jersey. He announced on Feb. 1 that he was running for president. Booker's early campaign messaging has focused on unity and finding commonality by addressing inequality and racial discrimination. Prior to serving in the U.S. Senate, Booker was the mayor and a city councilman of Newark, N.J.

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Elizabeth Warren, 69, is a Democratic U.S. senator from Massachusetts. At a March event in Dubuque she outlined a wealth tax on the nation’s ultra-rich. Warren has focused her campaign on economic issues, including the new tax on the richest 75,000 families to partially fund universal childcare, student loan debt relief, the Green New Deal and Medicare for all.

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Jay Inslee, 68, is a two-term governor of Washington State and a former congressman known for his environmental policies. He has made climate a centerpiece of his agenda, calling it our nation's number one priority. Inslee has proposed investing in industries that help reduce emissions, like building electric cars, installing wind turbines, and establishing solar energy sources nationwide.

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Joe Biden, 76, served nearly seven terms as a U.S. senator from Delaware before becoming vice president in the Barack Obama administration from 2009 to 2017. Biden has run for president twice before. He is known for his homespun personality and ability to connect with the working class. He campaigns on foreign policy and protecting low-income workers.

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Joe Sestak, 67, is a former Democratic congressman from Pennsylvania's 7th Congressional District, serving from 2007 to 2011. Sestak said he would focus his campaign on his experience in the military. If elected, Sestak said his top priorities as president will be taking strong action to combat climate change and countering Russia and China's global influence.

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Former U.S. Rep. John Delaney from Maryland opened his Dubuque office on March 31.  The 55-year-old was the first Democrat to formally declare his candidacy in July 2017. Delaney's campaign motto is "Focus on the Future," and he is running to address issues related to globalization, automation and technology. He also emphasizes cooperation and bipartisanship.

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Julián Castro served as the U.S. secretary of housing and urban development during the Obama administration. He also served as mayor of San Antonio for five years. The Democratic candidate for president announced he was running on Jan. 12. His campaign has emphasized a platform of universal prekindergarten, "Medicare for all" and immigration reform.

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Kamala Harris, 54, is a U.S. Senator from California and a former California attorney general. She unveiled middle-class tax cut legislation last fall, and has championed a liberal civil rights agenda in the Senate. She has focused on economic issues, including universal pre-K, debt-free college, a tax cut for working- and middle-class families, and Medicare for all.

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Kirsten Gillibrand, 52, is a U.S. senator from New York who visited Dubuque on March 19, delivering a speech that highlighted the difference between "healthy capitalism," corporate greed and socialism. She has focused on such issues as sexual assault, raising the minimum wage, affordable child care, universal pre-K, Medicare for all, and paid family leave.

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Marianne Williamson, 66, is a self-help author and lecturer who made an unsuccessful bid for Congress as an independent in 2014. She supports Medicare for all, the Green New Deal, and $100 billion in reparations for slavery, distributed annually over 10 years for economic and education projects. She founded a charity that helps people with serious illnesses.

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Michael Bennet, 54, is a Democratic member of the U.S. Senate from the state of Colorado. A moderate, Bennet is known for bipartisanship. Bennet was appointed to the Senate in 2009 and won a full term in 2010. He was re-elected in 2016 when he beat Republican Darryl Glenn. Bennet is also a former superintendent for Denver Public Schools.

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Pete Buttigieg, 37, is the mayor of South Bend, Ind. He joined the presidential race on Jan. 23. Buttigieg is in his eighth year as mayor. He was first elected in 2011 at age 29, and re-elected in 2015 with 80 percent of the vote. As mayor he focused on job growth in tech industries. He has called for policies on issues like climate change and economic opportunity.

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Seth Moulton is a Democratic member of the U.S. House representing Massachusetts' 6th Congressional District. He won his seat in 2014 after beating longtime Democratic incumbent John F. Tierney. Before serving in Congress, Moulton was a Marine who served four tours in Iraq. He has called for a new approach to foreign policy, national security and defense.

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Steve Bullock, 53, the Democratic governor of Montana, is known for his efforts to collaborate with both Democrats and Republicans in a state that Donald Trump won easily in 2016. Bullock focuses on his Montana roots, work on campaign finance law and early childhood education. Before he was elected governor in 2012, Bullock was state attorney general.

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Tim Ryan, 45, is a congressman from Ohio and a former congressional staffer. In Congress since age 29, he says he's running for president "to bring compassion and clarity back to the White House." He is a champion of blue-collar voters and favors renegotiating or enforcing trade deals, standing up to China, unions rights and workforce development.

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Tulsi Gabbard is the Democratic representative from Hawaii's 2nd Congressional District in the U.S. House. In 2012, she became the first Hindu elected to Congress. Prior to her election, Gabbard served in the Hawaii House of Representatives and on the Honolulu City Council. Among her key issues has been opposition to American military intervention overseas.

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