Tuesday’s Republican primaries could set Donald Trump on a glide path to the nomination — or ensure a bloody state-by-state battle from now until June.

The six races include the home states of two of the remaining candidates, Sen. Marco Rubio of Florida and Gov. John Kasich of Ohio.

But Trump is leading in both states. If he prevails in these two winner-take-all contests — and in Tuesday’s primaries in Illinois, North Carolina, Missouri and the Northern Mariana Islands — his delegate lead will be almost insurmountable.

Trump leads in every one of the races, according to RealClearPolitics.com.