Wisconsin, New York, Rhode Island and Connecticut primaries: follow live results

Voters cast ballots in four states including key battleground for Trump and Biden. Get up to speed with the results as they come in

• Biden faces test in Wisconsin as Gaza supporters call for uninstructed' vote

Voters in Connecticut, New York, Rhode Island and Wisconsin cast ballots in the presidential primaries on Tuesday. Much attention will be paid to Wisconsin, where voters will signal strength and weaknesses in the critical swing state for Joe Biden and Donald Trump.

There are also options in Connecticut, Rhode Island and Wisconsin for voters to choose uncommitted" in a show of protest against Biden's support for Israel in the war in Gaza.