Canadian actor William Shatner teased the "counter-offer" he would have liked Canada's newly-elected Prime Minister Mark Carney to have made against President Donald Trumps push for the country to join the United States as its 51st state.The prime ministertoldTrump in the Oval Office on Tuesday that some places are "never for sale," including Canada, to which Trump responded, "Never say never.""I've dealt a little in real estate, and I'm going to say to Carney, do a real estate deal," Shatner told "Jesse Watters Primetime" on Tuesday. "Make a counter-offer. Let's offer Canada, offer to the United States to be the 11th province."Shatner revealed whether he thought Trump was "serious" about making Canada the nations 51st state.CARNEY SAYS CANADA IS NOT FOR SALE, TRUMP REPLIES, 'NEVER SAY NEVER'"I mean, everybody's so serious about what is an un-serious offer," he said. "Canada's been around for 150 years more, and they've had a noble service.""You can't denigrate that, you can't deny that," Shatner continued.Watters challenged Shatners implication that Trump is "denigrating" Canadian soldiers "fight for freedom."Sometimes "persistence" pays off, he said, adding that former President Joe Biden finally got his wife to accept his marriage proposal after multiple attempts.Shatner replied, "I know, but at a certain point, persistence becomes insulting," before calling the 51st-state debate a "spurious fight."Watters asked the "Star Trek" actor if he took an interest in Mars, which SpaceX CEO Elon Musk intends to colonize as a source of "life insurance" for humanity.ELON MUSK SHARES VISION OF MARS AS 'LIFE INSURANCE' FOR HUMANITY: 'MULTI-PLANET CIVILIZATION'Shatner described the question as "fraught with many implications, like discovery.""What is this thing that mankind has to search and search and search and never be content?" Shatner asked. "Like making one offer after another to Canada."Shatner said he plans to ask Neil deGrasse Tyson the same question in June during "Rocking," theirunscripted concert in Seattle, before plugging his annualHollywood Charity Horse Show."I've raised millions of dollars for children and for veterans, and on May 31, were having our party," Shatner said.KATY PERRY'S BLUE ORIGIN FLIGHT FOLLOWS WILLIAM SHATNER ON STAR-STUDDED TREKS TO SPACESince his iconic role as Capt. James T. Kirk in "Star Trek," the 94-year-old is no stranger to exploring the universe.In 2021, he became the oldest person to travel to space at the time when he flew on Jeff Bezos Blue Origin New Shepard rocket.After his flight, he reflected onthe trip as something that "felt like a funeral."Shatner continues to oversee and host his series "The UnXplained," an investigative documentary on the History Channel, to help explain the worlds most intriguing phenomena.