Biden and Trump sweep four primaries including battleground state Wisconsin

Both candidates have clinched nominations, but Connecticut, New York, Rhode Island and Wisconsin turnout may hint at 2024 results

Both Joe Biden and Donald Trump won primary elections in four states, including the crucial battleground state of Wisconsin.

Hundreds of delegates were up for grabs in Rhode Island, Connecticut, New York and Wisconsin on Tuesday, and Biden and Trump have already amassed enough delegates to win their respective nominations. But the turnout could provide more clues about the general election in November.