Texas Sen. Ted Cruz ended his presidential campaign Tuesday, eliminating the biggest impediment to Donald Trump's march to the Republican nomination.

Here are a few things to know following Ted Cruz's departure from the presidential campaign:

1. What does this mean for John Kasich: Despite the results of Indiana's primary, he will remain in the race, according to his official Facebook page.

"Tonight's results are not going to alter Gov. Kasich's campaign plans. Our strategy has been and continues to be one that involves winning the nomination at an open convention. The comments from Trump, on the verge of winning in Indiana, heighten the differences between Governor Kasich and his positive, inclusive approach and the disrespectful ramblings from Donald Trump."

2. Donald Trump is now the presumptive GOP nominee: Though Donald Trump has not yet secured the required 1,237 delegates, with Sen Cruz out of the race, there is no serious competition blocking his path.

For months, Republican leaders considered him a fringe candidate and banked on voters shifting toward more traditional contenders once the primary contests began. But Trump proved to be surprisingly durable, tapping into Republicans' deep anger with party leaders and outlasting more than a dozen experienced political rivals.

Republican National Committee Chairman Reince Priebus declared the race over, saying on Twitter that Trump would be the party's presumptive nominee.

The Associated Press contributed to this report