Indiana is one of two key states remaining in the Republican primary. And after Indiana voters go to the polls today, there will only be one major night of primaries left.
Polls close in Indiana at 6 pm local time — that's 6 pm Eastern for most of the state, and 7 pm Eastern in 12 counties in northwest and southwest Indiana.
Indiana is a must-win for Sen. Ted Cruz if he's to have any hope of stopping Donald Trump's march to the Republican nomination. The state awards its 57 delegates with a winner-take-all system, both statewide and in congressional districts, so a big delegate haul for Cruz could make it a slightly bigger struggle for Trump to get the majority of delegates he needs to secure the nomination before the Republican National Convention.
But polls suggest the odds are against Cruz: Trump is leading by 11 points in RealClearPolitics' polling average, and he's led in all but one of the past eight polls.
On the Democratic side, Indiana is awarding 83 delegates, proportionally as usual. Hillary Clinton has a narrow lead in the RealClearPolitics' polling average. The race isn't likely to change the delegate math much — Clinton has a commanding lead, and Sanders needs more and more delegates to catch up.