Democratic congresswoman Tulsi Gabbard of Hawaii has announced she will be running for president of the United States in 2020, promising to centre her campaign on the issue of "war and peace". In an interview with CNN, Ms Gabbard said she would be formally announcing her candidacy within the next week. The 37-year-old Iraq War veteran is the first Hindu elected to Congress and the first member of Congress born in the US territory of American Samoa. She has visited early primary and caucus states New Hampshire and Iowa in recent months and has written a memoir due to be published in May. "There are a lot of challenges that are facing the American people that I'm concerned about and that I want to help solve," Ms Gabbard told CNN, listing health care access, criminal justice reform and climate change as key platform issues. "There is one main issue that is central to the rest, and that is the issue of war and peace. "I look forward t...