U.S. presidential candidate Barack Obama is favored in Tuesday's Democratic Party primary in the state of Mississippi.

Voters in the southern state of Mississippi are going to the polls in that state's Democratic Party presidential primary. Opinion polls put Senator Barack Obama in first place, but Senator Hillary Clinton is likely to almost evenly split the state's 33 delegates.

As expected, Senator Barack Obama has won the Wyoming caucuses, gaining seven more delegates to move him closer to clinching the Democratic Party nomination. But, as VOA's Greg Flakus reports from Houston, Senator Hillary Clinton is also fighting hard, following her recent wins in Texas and Ohio.

Democratic presidential candidates Barack Obama and Hillary Clinton are hoping to gain momentum in Saturday's party caucuses in Wyoming.

Democratic Senators Barack Obama and Hillary Clinton are attacking each other on their foreign policy and national security credentials, as both candidates brace for a long and grueling battle for their party's presidential nomination. Senator Clinton met Thursday in Washington with a group of military leaders who are supporting her campaign to discuss Afghanistan and other national security challenges. VOA Correspondent Cindy Saine reports from Washington.

Political leaders in Florida and Michigan have called on the Democratic Party to allow delegations from their U.S. states to help choose a nominee for president.

Durham University expert in American politics, Professor John Dumbrell, comments on the current situation in the US elections.

Republican Senator John McCain won all four presidential primary votes on Tuesday and American news organizations now estimate he has clinched the Republican Party's presidential nomination. In the Democratic race, Senator Barack Obama won the primary in Vermont, Senator Hillary Rodham Clinton has been declared the winner of Ohio, one of two crucial delegate-rich states being contested. VOA National Correspondent Jim Malone has more on the McCain victory from Washington.

Democratic presidential contender Hillary Clinton won a key primary contest in Ohio, Tuesday, against rival Barack Obama, ensuring the battle for the Democratic Party's presidential nomination will continue. Clinton and Obama were also locked in a tight primary race in Texas. In the Republican race, Senator John McCain won all four primary contests on Tuesday and clinched his party's nomination. VOA National correspondent Jim Malone reports from Washington.

Beyond winning the popular vote in Tuesday’s US primaries, the key to securing a party’s nomination is a candidate’s ability to win enough support from party delegates to gain the nomination. On the Republican side, John McCain did just that on Tuesday with victories in Ohio, Texas, Vermont, and Rhode Island to exceed the 1,191 Republican delegate votes needed to capture his party’s endorsement.

Polls are open in all four of the U.S. states holding primary elections today Tuesday as U.S. Senators Hillary Clinton and Barack Obama battle for support for the Democratic Party nomination.

Record turnouts are expected in the U.S. presidential race as primary voters go to the polls in Texas, Ohio, Rhode Island and Vermont. The latest public opinion polls show Democratic Senators Hillary Clinton and Barack Obama locked in very close contests in the delegate-rich states of Texas and Ohio. On the Republican side, Senator John McCain could secure his party's nomination with victories Tuesday over former Arkansas Governor Mike Huckabee. VOA Correspondent Cindy Saine reports from Washington.