Senate Majority Leader Mitch McConnell predicted Tuesday that although Donald Trump has become the presumptive Republican presidential nominee, he will not change the GOP as an organization.

In an interview with radio host Hugh Hewitt, McConnell said Trump will be much like other GOP nominees and presidents who weren't in line with the orthodox GOP, such as former President Dwight Eisenhower. However, McConnell said he feels "comfortable" casting his ballot for him, and cited the Supreme Court has a main reason.

"Well, whether he has or not, he's not going to change the Republican Party," McConnell told the host. "You know, we've had nominees before who were not deeply into Republican politics and philosophy. Think of Eisenhower, for example. But Trump is not going to change the institution. He's not going to change the basic philosophy of the party."

"I'm comfortable voting for him, because on the big things that I think have the greatest impact on the future of the country. At the top of the list is the Supreme Court, I think he'll be just fine," McConnell continued.

The top-ranking Senate Republican also made it known that he plans to seek re-election to his Senate seat in 2020. McConnell won re-election to his seat in 2014, defeating Kentucky Secretary of State Alison Lundergan Grimes en route to helping the GOP retake the majority in the upper chamber.