Delegates
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.
Trump's inability to connect with local leaders may come back to haunt him.
WHAT'S HAPPENING
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.