[4] Following the Acela primaries, Cruz attempted to bolster his chances by announcing that, if nominated, he would name Fiorina as his running mate.

[6] On April 29, 2016, Governor Mike Pence of Indiana, who eventually became Donald Trump's running mate, announced that he would vote for Cruz in the primary election.

[7] However, Cruz's posturing and endorsements proved to be insufficient, as Trump handily won Indiana with 53% of the vote, despite being outspent by a margin of more than 4–1.

[8] Cruz lost Indiana by a wide margin to Trump (53% to 37% with Kasich at 8%) and subsequently dropped out of the race.

As a result, Reince Priebus, Republican National Committee chairman, tweeted that Trump was the presumptive nominee in the GOP.