Though the Democratic convention is Hillary Clinton's party, President Barack Obama could be the most important figure in the presidential contest between now and Election Day, NBC News reports.
Obama, who is speaking at the convention Wednesday night, is the only outgoing incumbent president since Ronald Reagan who has been popular enough to benefit his party's nominee.
Obama's job-approval rating is at 51 percent in the latest NBC News/Wall Street Journal — the third-straight NBC/WSJ survey where his approval has been above 50 percent.
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Despite the president's high approval ratings, Republicans want to use the negative news at home and abroad — the terrorist attacks in Orlando and France, and the police shootings in Dallas and Baton Rouge — against the party in charge of the White House.