Donald Trump got a massive win of all the five US states in the Tuesday vote, while Hillary Clinton bagged in four of the five states.
After becoming victorious in Delaware, Connecticut, Rhode Island, Pennsylvania and Maryland, Mr. Trump referred to himself as the “Republican presumptive nominee.”
The win has brought him closer to the number of delegates that he needs before the convention of the party in July.
Bernie Sanders denied Mrs Clinton a swift win on the Democrats side.
Mr. Vermont senator swept away the Rhode Island votes and vowed that he would fight until the end of the primaries.
Speaking at Philadelphia Convention Center after securing the four other states, Mrs Clinton said her campaign was setting “bold, progressive goals” to improve lives in the US.
“We believe in the goodness of our people and the greatness of our nation,” she said.
Mr. Trump has told his supporters that his policies would remain as they are if he became the president.
“I’m not changing,” he said. “You know I went to the best schools. I’m like a very smart person. I’m going to represent our country with dignity and very well.
“But I don’t really want to change my personality. You know, it got me here.”