President Trump's inner circle got one more member — CIA Director Mike Pompeo.

The Senate confirmed the former Kansas congressman's nomination to the post Monday night. It came after Trump went to CIA headquarters in Langley, Va., Saturday to laud the spy agency and blast Democrats for delaying a vote on Pompeo's nomination. (That was the same event where the president said he was at "war" with the media and falsely claimed to have 1 million to 1.5 million people in attendance for his inauguration.)

Technically, CIA director is not part of the president's Cabinet, but it is a high-level, important position. Currently, just two of Trump's Cabinet nominees have been confirmed — his Defense and Homeland Security secretaries. His Cabinet is expected to move a few more steps closer to being rounded out Tuesday when four nominees get Senate committee votes — Ben Carson for Housing and Urban Development (10 a.m. ET), Elaine Chao for Transportation, Nikki Haley for U.N. ambassador and Wilbur Ross for Commerce.

Two key nominees are expected to testify Tuesday — Rep. Tom Price, R-Ga., for Health and Human Services secretary before the Senate Finance Committee (10 a.m. ET) and Rep. Mick Mulvaney, R-S.C., to be the president's budget director before the Budget Committee (10:30 a.m. ET) and Homeland Security and Governmental Affairs (2:30 p.m. ET).

Despite the lack of confirmations at this point — and despite some controversies — all of Trump's nominees are expected to sail through with little difficulty. That's thanks to a rules change implemented, ironically, by Democrats when they were in the majority. In 2013, Democrats were frustrated by Republican obstruction of lower-level federal court appointees. So then-Democratic Majority Leader Harry Reid of Nevada eliminated a rule requiring 60 votes to move a nominee to a vote by the full Senate. (The move does not apply to Supreme Court nominees or legislation.)

There are a handful of these Trump nominees one could point to who might not have been able to gain enough Democratic votes to be in Trump's Cabinet if the 60-vote threshold were still in place. Think: Betsy DeVos, who showed little depth on education policy, for Education; State nominee Rex Tillerson because of his oil company background; Attorney General nominee Jeff Sessions, due to questions about his views on race and his commitment to voting rights; Labor nominee Andy Puzder because of his fast-food chains' employee policies; Steve Mnuchin, now in line to be Treasury secretary, for profiting off the foreclosure crisis; and possibly others, whom Democrats might have voted down, might have been pulled or possibly never brought forward.

The process can be confusing, so here's a quick primer on the steps it takes to become a member of the president's Cabinet, followed by where each nominee is in the process:

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The steps

1. Nominated by president/president-elect

2. Senate hearings before relevant Senate committee

3. Voted out of committee -- if a majority of the committee votes for the nominee, it goes to the Senate floor for a vote by the full body. (A caveat here: the Senate majority leader can bring a nominee to the floor for a full Senate vote even if they do NOT get the approval of the relevant committee. It's rare, but it's happened in the past.)

4. Confirmed by full Senate in floor vote

For more on each nominee, check out NPR's list of Who's In The Trump Administration.

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Where each nominee stands

Note: Director of National Intelligence and CIA director are technically not considered Cabinet-level, according to the Presidential Transition Guide put out by the Center for Presidential Transition, but because they are important posts, they are also listed below for where they are in the process.

Confirmed

  • John Kelly (Homeland Security)
  • James Mattis (Defense)
  • Mike Pompeo (CIA)

Voted out of committee

  • Rex Tillerson (State)

Senate hearings complete

  • Ben Carson (Housing and Urban Development): Committee vote Tuesday
  • Elaine Chao (Transportation): Committee vote Tuesday
  • Nikki Haley (U.N. Ambassador): Committee vote Tuesday
  • Rick Perry (Energy): No committee vote set
  • Wilbur Ross (Commerce): Committee vote Tuesday
  • Ryan Zinke (Interior): No committee vote set
  • Betsy DeVos (Education): Committee vote Jan. 31
  • Jeff Sessions (Attorney General): Committee vote delayed; possibly Jan. 31
  • Steve Mnuchin (Treasury): No committee vote set
  • Scott Pruitt (Environmental Protection Agency): No committee vote set

Nominated

  • Linda McMahon (Small Business Administration): Hearings Tuesday
  • Mick Mulvaney (Budget Director): Hearings Tuesday
  • Tom Price (Health and Human Services): Second hearing Tuesday
  • Andy Puzder (Labor): Hearing Feb. 2
  • Dan Coats (Director of National Intelligence): No hearing set
  • Robert Lighthizer (U.S. Trade Representative): No hearing set; Finance committee has to get through Price
  • Sonny Perdue (Agriculture): No hearing set
  • David Shulkin (Veterans Affairs): No hearing set

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