WASHINGTON (Sputnik) — By 11:00 p.m. Eastern Time (ET), Clinton won the six states of Georgia, Virginia, Tennessee, Arkansas, Alabama and Texas.
Trump had both won five major states of Massachusetts, Georgia, Alabama, Virginia and Tennessee.
Each frontrunner was projected to win in other contests too.
But it was not a clean sweep for either candidate. Clinton’s only remaining rival Senator Bernie Sanders won the primary in his home state of Vermont and looked likely to win in Oklahoma and the Colorado caucuses as well.
Senator Ted Cruz emerged as the last major Republican to hold out against Trump, winning in his native Texas and in Oklahoma. However, Cruz looked unable to expand his popularity beyond the social conservative evangelical Protestant heartland.
Sanders remained determined to stay in the race, but he was more than 600 delegates he had won behind Clinton.
Clinton beat Sanders decisively with Democratic voters across the south and the US heartland.
The night was a disappointing one for Senator Marco Rubio, who was reported leading in the Minnesota caucuses, but failed to win any outright primary elections and usually trailed third among Republican voters behind Trump and Cruz.
Trump and Clinton both addressed rallies of their supporters as the confident victors of the evening. Seven of the contests remained undeclared at 11.00 p.m.