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Biden heading to Democratic nomination after big wins
Former V-P wins 4 of 6 states on Tuesday, has about 150 delegates more than Sanders
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The writing is on the wall after Tuesday's slew of Democratic Party primaries across six states: Mr Joe Biden is in line for the Democratic Party's nomination as the candidate to beat President Donald Trump in November.
The 77-year-old former vice-president widened his delegate lead over rival Senator Bernie Sanders, 78, winning four states out of the six, according to results and projections as of early yesterday morning in Washington.
