Super Tuesday: Turning point of road to White House

Americans have officially begun voting in the Super Tuesday primaries. 

Democrats will vote in 11 states and American Samoa today, with 865 delegates up for grabs. For Democrats, there are an additional 150 unpledged delegates, known as "superdelegates," who are free to vote however they want at the national convention this summer.

Republicans will vote in 11 states, with 595 delegates up for grabs.

Alabama, Arkansas, Georgia, Massachusetts, Minnesota, Oklahoma, Tennessee, Texas, Vermont, and Virginia will hold contests for both parties.

Alaska is holding a GOP-only caucus, and Colorado is holding a Democrat-only contest. 

Democrats are also voting in American Samoa. 

For the GOP contest, most polls show Donald Trump holding decent leads in the majority of the 11 states. 

For the Democrats, Hillary Clinton is expected to take the majority of states from Bernie Sanders.

Republican candidate Ted Cruz is expected to face pressure to quit the presidential race if he does not win his home state of Texas, with many analysts predicting that such a loss would signal the end of his campaign.

Bernie Sanders turned out to his Burlington, Vermont, polling station early this morning to cast his vote.

Speaking to reporters outside his Burlington, Vermont, polling station on Tuesday morning, Bernie Sanders said: "I am confident that if there is a large voter turnout today across this country, we are going to do well. And if there's not, we're probably going to be struggling."

Both Sanders and Clinton topped Donald Trump in hypothetical general election match-ups, according to a new CNN/ORC Poll released Tuesday. Based on answers by 1,001 Americans, Clinton beats Trump with 52 percent of the vote against 44. If Bernie Sanders were to become the nominee, he would beat Trump by a wider margin of 55 percent to 43 percent.