That would have 3 or 4 possible outcomes. Either the country has a public - or secret - deal with Trump in exchange for recognition or tariff reductions, or they are one of them that is investing in the USA. If they didn't have a deal with Trump it would give them leverage to make one. Or - the 4th option - they would exploit him for as much intel as they could get and then either kill him or ask for ransom.
I don't think Trump would have any issues with extradition. Even Iran would eventually give him to us with the right deal - maybe a lessening of some sanctions, or protection from Israel.
That would have 3 or 4 possible outcomes. Either the country has a public - or secret - deal with Trump in exchange for recognition or tariff reductions, or they are one of them that is investing in the USA. If they didn't have a deal with Trump it would give them leverage to make one. Or - the 4th option - they would exploit him for as much intel as they could get and then either kill him or ask for ransom.
I don't think Trump would have any issues with extradition. Even Iran would eventually give him to us with the right deal - maybe a lessening of some sanctions, or protection from Israel.