Who's next? Politicians, business moguls and other Cabinet contenders stroll through the gilded entrance of Trump Tower to meet with The Donald's transition team - including energy secretary pick Rick Perry

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President-elect Donald Trump has fanned speculation over his Cabinet picks as politicians, businessmen and other contenders parade into the gilded halls of Trump Tower in New York. 

Deliberation over one of the most significant roles has finally ended with ExxonMobile CEO Rex Tillerson said to be Trump's nominee for secretary of state in an announcement slated for Tuesday morning.

But positions like the Director of National Intelligence, and the heads of the Interior, Agriculture, Energy and Veterans Affairs departments remain unfilled.

With Rick Perry, Howard Lorber, and Tim Scott all seen heading to meet Trump on Monday, here's a look at their prospective roles in the upcoming administration. 

Rick Perry

Trump will nominate former Texas Governor Rick Perry as secretary of energy, sources claimed. Perry said he would do away with the very agency he is now slated to run in a 2011 debate

Trump will nominate former Texas Governor Rick Perry  as secretary of energy, according to reports by both CBS and NBC.

Perry, who launched unsuccessful bids for president in both 2012 and 2016, notably said he would do away with the very agency he is now slated to run.

During a Republican presidential primary debate in November 2011, he said: 'I will tell you, it is three agencies of government when I get there that are gone: Commerce, Education, and — what's the third one there? Let's see.'

Mitt Romney, who eventually nabbed the party's nomination in 2012, suggested the Environmental Protection Agency, but Perry continued to stall after moderator John Harwood pressed him for a third.

Perry became notorious for his blundering response when he said: 'The third one, I can't. Sorry. Oops.'

He later clarified that he meant to name the Energy department. 

Howard Lorber

Vector Group President and CEO Howard Lorber is one of Trump's economic advisers. He is said to be one of Trump's 'best friends,' and has business ties in Russia

Vector Group President and CEO Howard Lorber is one of many Wall Street and real estate moguls appointed to Trump's team of economic advisers.

Lorber, named as one of Trump's 'best friends,' has appeared on The Apprentice as well as the show Million Dollar Listing New York.

He brought Trump to Moscow in 1996, because they were in talks to build a luxury residential tower. The project was never realized.

Lorber and Vector Group do not currently have business ties in Russia, according to a spokesperson for the company.   

Carly Fiorina

The former Hewlett-Packard exec and presidential candidate Carly Fiorina is in talks to take up the Director of National Intelligence post

The former Hewlett-Packard exec and presidential candidate Carly Fiorina met with the president-elect at Trump Tower Monday to discuss the Director of National Intelligence post.  

Fiorina does not have any experience in government and has not worked in the intelligence area, although she did sit on a civilian oversight board of the Central Intelligence Agency. 

Fiorina said the two talked at length about China, which she called a 'rising adversary,' then used language that echoed Trump's skepticism about whether Russia was behind hacking during the elections.

She called it an 'honor' to meet with Trump, who appeared to mock Fiorina's physical appearance during the primaries saying 'That face!' during a Rolling Stone interview when she appeared on screen.  

Tim Scott

Scott, the only African American Republican in Senate, is a chairman on Trump's transition team. He has asked minorities to give the president-elect a chance.

Scott, the only African American Republican in Senate, expressed his 'excitement' working with Trump as a chairman on his transition team. 

The South Carolina junior senator, who spoke out earlier this year about being stopped by law enforcement as a black man, asked minorities to give the president-elect a chance.

He also vowed to hold Trump accountable and struck an inclusive note, saying: 'I will continue working to develop solutions to lift families up...in every zip code across this nation.'

When confronted about Trump's divisive rhetoric and fears among people of color that the president-elect did not represent them, Scott insisted similar conversations would be raised if Hillary Clinton won.

Cathy McMorris Rodgers

Trump is expected to name climate change skeptic and five-term representative of eastern Washington to head the Interior Department

Trump is expected to name Cathy McMorris Rodgers, a climate change skeptic and five-term representative of eastern Washington, to head the Interior Department, according to the New York Times.

The interior secretary oversees the management and conservation of federally owned land and natural resources.  

Rodgers, who was named a vice chair on Trump's transition team, previously voted for the legislation to open up opportunities for oil and natural-gas drilling.

'It appears she will favor oil and gas and mining interests over the preservation and wise management of public lands,' Dwight Pitcaithley, a former historian at the National Park Service, told the Verge. 

Ryan Zinke

Zinke, Montana's only representative in the US House, is up for positions in either the Department of the Interior or Veterans Affairs

Zinke, Montana's only representative in the US House, is up for positions in either the Department of the Interior or Veterans Affairs, according to Fox.

In a meeting with Trump on Monday, the two discussed Native American affairs, national security, veterans affairs, along with land use and a 'wide range of Montana priorities.' He called it a 'positive meeting'. 

Jason Miller, Trump's communications director, said: 'Congressman Zinke is a strong advocate for American energy independence. And he supports an all-encompassing energy policy that includes renewable, fossil fuels and alternative energy.

'Additionally, Congressman Zinke believes we need to find a way to cut through bureaucracy to ensure our nation's parks, forests, and other public areas are properly maintained and used effectively.'

John Fleming

Fleming, who was first elected to the House as a representative of Louisiana in 2008, lost out on the state's Senate race, coming in fifth in a crowded field of 24

Fleming, who was first elected to the House as a representative of Louisiana in 2008,  lost out on the state's Senate race, coming in fifth in a crowded field of 24. 

It is unclear whether Fleming is up for any positions in Trump's administration. He was among the many GOP candidates who criticized Trump after the 2005 hot-mic recording was released.

Fleming tweeted: 'Donald Trump's comments are reprehensible. No man should ever speak like that. They are unacceptable under all circumstances.'