Tuesday's primaries saw Donald Trump  and Hillary Clinton move closer to the  Republican and Democratic presidential nominations  with wins in Illinois, Florida and North Carolina, and John Kasich win his delegate-rich home state of Ohio.

While Clinton, Kasich and Trump notched big wins, Tuesday was the end of the road for Fla. Sen. Marco Rubio who told supporters he was suspending his bid for the Republican nomination.

Where do the candidates stand in delegate counts?

Here are the current delegate counts for the candidates for the Republican nomination for president.

Donald Trump – 621

Ted Cruz – 396

Marco Rubio – 168

John Kasich – 138

The number needed to win the Republican nomination is 1,237 – that’s the number of delegates who have to vote for you at the GOP’s national convention in Cleveland in July.

As of Monday, there are 1,585 delegates yet to be allotted.

On the Democratic side, after the March 5 primaries and caucuses, Clinton has 1,561 delegates -- of which 467 are superdelegates. Sen. Bernie Sanders has 800  delegates, including 26 superdelegates.

What is a superdelegate, and what do they do?

A Democratic candidate needs 2,383 delegates to win the nomination. There are still 2,404 Democratic delegates to be allotted.