A humiliating loss on home ground in Florida, meanwhile, ended the White House dreams of Sen. Marco Rubio, who was once hailed as a Republican Party savior.
Clinton took big strides toward the Democratic nomination by winning Florida and North Carolina. And in crucial victories, she stopped Bernie Sanders in his tracks in the industrial Midwest by taking Ohio and Illinois.
The Republican Party, meanwhile, veered closer to a contested convention after Kasich held his own state and deprived Trump of its 66 delegates. That makes it more difficult for the billionaire to reach the 1,237 delegates he needs to capture the GOP prize.
Trump did, however, prevail in the biggest contest of the night, taking all of Florida's 99 delegates. That resounding win helped force Rubio out of the race after failing to win his own state and unite the Republican establishment against Trump. The real estate tycoon also won primaries in Illinois and North Carolina.
