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Input: Washington (CNN)  Secretary of State Rex Tillerson  the stone-faced former oil executive Donald Trump tapped to serve as his global envoy   is increasingly seen by administration officials and diplomats as on  his  way out -- just as flash-points from Iran to North Korea flare.
The impression that  Tillerson's  days as Trump's top diplomat are numbered was fueled this week by new reports of acrimony between the two men -- principally  that  Tillerson  had questioned Trump's intelligence to other top officials.
More than a dozen sources inside the administration and in diplomatic circles describe the relationship between  Tillerson  and Trump as reaching a new low. The two men have failed to develop the type of close relationship that Trump enjoys with other members of his Cabinet. Radically different in personality  Tillerson and Trump have chafed at each other's perceived slights.
 Tillerson  has told friends  he  intends to remain in  his  post for at least a year  a psychological deadline that would allow  him  -- in  his  own mind -- to depart with dignity. But irritation with  his  boss  paired with frustration at the entrenched ways of Washington  have led  him  to waver at times.
There were indications this week that  Tillerson  would remain in  his  job for now  including public displays of support from Trump. A source familiar with the turmoil surrounding Tillerson says there is "no indication" the secretary's job is in jeopardy  at least not immediately.
This source said  Tillerson  remains focused on  his  job. "That's where  his  head is " the source said.
At the White House Friday  Trump's press secretary said the President retained confidence in  Tillerson   despite the growing sense in Washington that his days are numbered.
Trump  however  has expressed frustration that  Tillerson  is stymieing aspects of  his  agenda. Trump grew furious on Wednesday when early morning news reports emerged that  Tillerson  had called him a "moron" during a meeting about Afghanistan over the summer. The public airing of the insult deeply angered the President  who vented on Twitter that the story amounted to "fake news."
Multiple sources told CNN that Trump was aware that  Tillerson  had used the word to describe him before the public report emerged  though it wasn't clear when he first learned of it. Having the information leaked  however  enraged him.
Early Wednesday   Tillerson  spoke with Trump's chief of staff John Kelly by phone as the story aired on morning television. Both agreed that  Tillerson  should deliver a statement refuting aspects of the report  which also said he had considered resigning from his post.
 Tillerson  delivered a set of remarks that adamantly denied he'd ever considered leaving the administration  and offered effusive praise for Trump's foreign policy objectives.
"There's never been a consideration in my mind to leave "  Tillerson  said from the State Department Treaty Room.
But he did not deny calling Trump a "moron" when asked directly. Later  the State Department spokeswoman Heather Nauert said  Tillerson  told her he'd never used that language to describe the President.
But he has continued to bristle amid differences with the White House. Last week  Trump undercut his position on talks with North Korea after  Tillerson  said in Beijing that the US has direct channels of communication with Pyongyang. Trump said on Twitter that  Tillerson  was "wasting him time." Differences also persist between the two men on the Iran nuclear deal  which Trump vowed to scrap as a candidate.
Trump  according to people familiar with the dynamic  has grown resentful of  Tillerson's  differing stances on those policy issues  believing his secretary of state to be overly dismissive at times.

Tillerson's days seen as numbered as foreign crises boil