"I'll be an eight-year president, I'll be a two-term president. I always thought that was very important," Trump told NBC's Meet the Press with Kristen Welker in an interview that aired on Sunday.

Trump, 78, has previously said that he was "not joking" about wanting to serve a third, or even fourth, term as US president.

He later said his statements were meant to troll the "fake news media".

His company, The Trump Organization, has been selling "Trump 2028" hats, fuelling armchair speculation that he may seek to remain in office after his second term ends in January 2029.