Kristi Noem’s sacking exposes first fissures in Trump’s second term

But in his second term, the president has surrounded himself with those less likely to draw his ire.

His first cabinet was filled with establishment Republicans, technocrats and respected business figures.

But those officials were likely to behave like conventional cabinet members, pushing to maintain precedent and meekly accepting criticism.

His new cabinet is more in the Trump mould: true believers in the president’s agenda with an aggressive attitude towards the media and Democratic politicians.

They would be expected to follow the Trump ethos – never admit fault, and never apologise.

But the Noem’s handling of the Department of Homeland Security was too much for even Trump to defend.

Being maligned and despised by Democrats might not make the president raise an eyebrow – but Republicans are another matter altogether.

Not only have thousands of documented immigrants with no criminal background been detained and deported, but many American citizens have also been swept up in the raids.

Noem has also been the subject of unflattering headlines about her own leadership.

A Coast Guard pilot was fired for leaving Noem’s blanket on a plane.

She also used $US220 million ($313 million) in taxpayer dollars on an ad ostensibly to promote the Department, but was seen as being self-serving.

The ad showed Noem riding a horse wearing a cowboy hat in her home state of South Dakota.

The ad contract was given without a competitive bidding process to the husband of prominent department spokesperson Tricia McLaughlin.

And this week, she would not outright deny under oath that she was having an affair with top advisor Corey Lewandowski. 

In spite of the scandals, Noem has been given a newly created role as “Special Envoy for The Shield of the Americas”.

It is not known whether Noem knew about her sacking before it was announced, with her taking the stage for a speech at the time.

Noem’s axing is the first major sign Trump is trying to get his administration back on track as his approval rating sits in the doldrums.

Republicans are likely to lose control of the House of Representatives and possibly the Senate in the coming midterm elections in November.

If successful, Democrats will be able to halt Trump’s legislative agenda and potentially impeach him.

Already, it is appearing apparent Democratic voters are more motivated to turn out in November.

On Tuesday, more Democrats voted in Texas primary elections than Republicans, an alarming sign for the White House in their party’s most important state.

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