In addition to slamming Trump's delegate calculations on the campaign trail, Cruz also expressed his lack of interest in being Trump's vice president.
"There are a lot of reasons, but perhaps the simplest is that if Donald is the nominee, Hillary wins, by double digits," Cruz said.
"If Donald's the nominee, he loses. If I'm the nominee, we win.”
Even though Cruz won the delegates that were up for grabs in Wyoming this weekend, he still trails Trump in the delegate count.
"Donald's calculator is missing a few keys," Cruz said in discussing Trump's prospects of getting to the required 1,237 delegates in order to secure the nomination.