(CN) - Donald Trump and Hillary Clinton dominated their rivals Tuesday, each taking seven states. Bernie Sanders won four, Ted Cruz took Texas and Oklahoma, and Marco Rubio prevailed only in Minnesota.
Trump rolled over his opponents from the Northeast to the Deep South, winning a plurality of votes in Alabama, Arkansas, Georgia, Massachusetts, Tennessee, Virginia and Vermont.
At 4:45 a.m. Wednesday, with more than 95 percent of the votes counted in all Super Tuesday states but Alaska, Trump had amassed 488 delegates this year by unofficial count, with 1,237 needed for the Republican nomination.
Cruz took 44 percent of the vote in his home state of Texas on Tuesday, to Trump's 27, and took Oklahoma by a margin of 34 to 28 percent. An unofficial tally gave Cruz 303 delegates early Wednesday.
Rubio edged his rivals only in Minnesota, where he took 37 percent of the votes to Cruz's 29 and Trump's 21. His unofficial delegate count stands at 156.
Cruz used his two state victories Tuesday night to all but call for Rubio to drop out of the race.
"So long as the field remains divided Donald Trump's path to the nomination remains more likely and after tonight we have seen that our campaign is the only campaign that has beaten, that can beat and will beat Trump," Cruz told a jubilant crowd at the Redneck Country Club, a suburban Houston bar owned by conservative talk radio gadfly and Cruz confidant Michael Berry.
"God bless the State of Texas and God bless the State of Oklahoma," Cruz added.
Fernando Lopez, a 38-year-old tech worker sporting a Reagan-Bush '84 T-shirt, said he backs Cruz because of his conservatism and his strict reading of the Constitution. Lopez said he stood by Cruz despite his stance on immigration.
"I'm Hispanic and he hasn't alienated me," Lopez said. "He may have alienated some other people, but that's just the nature of the beast when you take stands on your beliefs. And the fact that he stands by his beliefs makes me respect him even more. I do agree with many of his stances on immigration as far as enforcing our laws as they are written right now."
A woman in the packed crowd, listening in, told Lopez: "I like your shirt."
"Thank you," he said. "It stands the test of time."
On the Democratic side, Clinton built her lead over the unexpectedly strong challenge from Vermont Sen. Bernie Sanders, who took Minnesota, Colorado, Oklahoma and Vermont on Tuesday, giving him a running total this year of 633 Democratic delegates.
But with Super Tuesday victories in Texas, Georgia, Virginia, Tennessee, Alabama, Arkansas, and Massachusetts, Clinton's unofficial count of 997 delegates this year put her more than 40 percent of the way to the 2,383 needed to secure the Democratic nomination.
Clinton crushed Sanders in the South, taking 78 percent of the popular Democratic votes in Alabama, 71 percent in Georgia, 66 percent in Tennessee and her quasi-home state of Arkansas, and 64 percent in Virginia. She edged him by 50-49 percent in Massachusetts.
Sanders rolled in his home state of Vermont with 86 percent of the Democratic vote, and beat Clinton convincingly in Minnesota (62%), Colorado (59%) and Oklahoma, which he took 52 percent to 42 percent.