The Mountaineer State played to many Sanders strengths with white and independent voters. But he won't cut into Clinton's delegate lead much even with his victory.
His single-payer health care plan would cost an estimated $32 trillion, according to the Tax Policy Center. And it's not balanced out enough by tax increases.
Republican Ted Cruz has ended his candidacy, after Donald Trump won Indiana to all but clinch victory. Bernie Sanders also won, with 52 percent of the vote to Hillary Clinton's 47 percent.
Ted Cruz ended his campaign after losing must-win Indiana. Bernie Sanders beat Hillary Clinton, but she keeps a large lead in pledged Democratic delegates.
If Donald Trump wins most of Indiana's delegates, his path to the nomination will be clear. Even if Bernie Sanders wins the state, he will likely wake up with less of a chance of being the nominee.
The state has been steadily losing manufacturing jobs for years. The issue is already playing a big part in the presidential campaign, and it could drive a lot of people to the polls on Tuesday.
Beyond the prospect of winning the actual nomination, each of these men sees a chance to frame the issues and politics of the general election — and to influence party dynamics for years to come.
On the Democratic side, it's all but done. The former secretary of state now has 90 percent of the delegates needed to be the nominee. For the GOP, Trump is now the only one who can win a majority.