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Nico Rosberg became only the fourth driver in Formula One history to record seven successive wins when he cruised to victory ahead of Mercedes team-mate Lewis Hamilton in Sunday's incident-filled Russian Grand Prix. The only three men to have reeled off seven straight wins were Italian Alberto Ascari and Germans Michael Schumacher and Sebastian Vettel, whose race on Sunday was ended by a first lap accident. Hamilton, who started 10th, avoided the carnage of a first lap multiple collision that eliminated Vettel to sear through the field and, briefly, threaten a challenge for the lead.
By Steve Holland and Valerie Volcovici WASHINGTON (Reuters) - Front-runner Donald Trump said on Sunday that he will have essentially sealed the Republican U.S. presidential nomination if he wins Tuesday's contest in Indiana, where he now holds a big lead over chief rival Ted Cruz. A new NBC/Wall Street Journal/Marist opinion poll showed Trump with a wide lead in Indiana, 49 percent to 34 percent for Cruz and 13 percent for a third candidate, Ohio Governor John Kasich. Trump sounded confident in an interview on "Fox News Sunday" when asked whether Indiana would basically end the long-running Republican race in his favor.