US President-elect Donald Trump is expected to name Florida Senator Marco Rubio as the new Secretary of State, CNN reported on Tuesday.

The American news channel reported quoting two sources but said the decision is still not final.

One of the sources told CNN that the belief was that Trump was leaning toward Ric Grenell, but over the course of the day, he shifted his preference to Rubio after a number of calls and conversations with allies of the Florida senator.

Until an offer is formally made, another source told the news channel that Trump could change his mind.

Rubio, who was in the running to be vice president, had made it clear that he was interested in potentially joining Trump’s Cabinet if it was for the right role, several sources familiar with the process told CNN.

The nomination would show a significant improvement in Trump's relationship with Rubio.

If media reports are to be believed, in 2016 when Rubio and Trump were competing to gain a Republican presidential nomination, the Cuban heritage leader had said the former President was not going to make 'make America great. He’s gonna make America orange'.

Donald Trump is returning to power as US president for the second term after registering a win in the polls by beating her opponent Kamala Harris.