New York- U.S. Secretary of State John Kerry has urged President-elect Donald Trump to maintain the heritage of U.S. President Barack Obama’s administration in foreign policy, warning that “it’s also essential that we don’t turn our back on the alliances, friendships and principles.”

Trump’s consultations are expected to result in the appointment of officials in the foreign, defense and treasury departments. However, the president-elect is still looking for a secretary of state and seems to be hesitating among Republican nominee Mitt Romney, former CIA Director David Petraeus and U.S. Senator Bob Corker of Tennessee.

In a related matter, the Wall Street Journal reported that Trump is willing to appoint Wilbur Ross as a commerce secretary.

Amidst this vagueness regarding the secretary of state’s post, choosing Romney would represent an assurance to diplomats in the department and moderates in the Republican Party as well as the allies of the U.S.

However, Romney lacks sufficient experience in diplomacy and has previously described Trump as a hypocrite.

Petraeus is also nominated for this position, knowing that he served before as the head of operations in Iraq and Afghanistan before being appointed as the director of CIA in 2011-2012.

He commented after his meeting with Trump on Monday that the president-elect “has shown a great grasp of a variety of the challenges that are out there and some of the opportunities as well”.

Trump also considers figures including former New York Mayor Rudy Giuliani, 72. Giuliani was among the first to back Trump but he lacks experience in foreign policy.

The President-elect chose financial expert Steven Mnuchin to lead the U.S. Treasury, along with announcing willingness to leave his business to avoid any conflict of interests. Yet, he added that he is not mandated to do this under the law but wants to fully focus on the management of the country to achieve a great U.S. once again.