Delegates
Fresh off a sweep of five Northeast states last week, Trump hopes a win in Indiana will put him within reach of the 1,237 delegates required to lock up the nomination.
Has the Trump campaign finally figured out how the nominating process works?
Bernie's path forward just got a lot harder.
Sanders' path to the nomination narrows even more.
WHAT'S HAPPENING
Trump's inability to connect with local leaders may come back to haunt him.
The GOP primary calendar is now working to the front-runner's advantage.
He still needs a lot of delegates.
And that's why everyone is terrified.
Rubio hadn't amassed enough delegates to substantially affect the race.