After four grueling nights at the Republican National Convention, Donald Trump Jr is unwinding by spending some quality time with his oldest daughter.

The Donald's eldest gave his little sister Ivanka a run for her money in the cute department by sharing a sweet snap of him sporting pigtails done by nine-year-old daughter Kai Madison.

'Not sure I can pull off the hairstyle my daughter wants me to rock before our daddy daughter date night,' he tweeted for the cute picture's caption.

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Donald Trump Jr shared a sweet snap of him and eldest daughter Kai on Friday night

After four grueling nights at the Republican National Convention, Donald Trump Jr was excited to unwind

'After a week of living off of caffeine and adrenaline a good meal with my oldest will be awesome.'

Also enjoying a relaxing day after the RNC was Trump Jr's younger sister, who sported baggy gray sweats and a make-up-free face for a precious picture with her nearly four-month-old son Theodore.

The Instagram photo shows the 34-year-old pointing at a CNN clip, the banner reading: 'Trump children deliver in prime-time speeches'.

'So proud of my amazing siblings @donaldjtrumpjr @erictrump & @tiffanytrump. Great work! #RNC #RNCinCLE,' she captioned the image.

The siblings have reason to relax, as their individual speeches have been praised as being the highlight of the Donald's wild four-day ride in Cleveland.

Many began to hail Trump Jr as a possible rising star in Republican politics, even hinting that he had a future running for New York City mayor.

Trump Jr has reason to relax and smile - his speech at the RNC have led many to hail him as a future rising star in Republican politics

Trump Jr, 38, has said he's in no hurry to seek public office - but may run when his young children grow up

Trump's family was firmly on display at the RNC. Pictured here is Trump Jr giving brother Barron a fist pump

Trump Jr, the executive VP of development and acquisitions at the Trump Organization, has five children with his wife Vanessa Haydon (pictured here together with oldest daughter Kai)

Trump Jr, 38, has said he's in no hurry to seek public office - but may run when his five young children grow older.

The Donald's eldest currently works as the executive vice president of development and acquisitions at the Trump Organization.

But Trump's Jr desire to delay following in his father's political footsteps didn't stop former Mayor Rudy Giuliani from declaring that Trump Jr would make 'one hell of a candidate'.

Republican delegate Brian Kolb, the minority leader of the New York State Assembly, said many see a future for Trump Jr in politics.

'But if his father becomes president, he may have other things to do,' Kolb said. 'Someone will have to run the family business, after all.'

Ivanka likewise caught the public's attention as she introduced her father in a speech that focused on women's rights.

But some on Twitter weren't talking about Ivanka's poise - they were too busy looking at her hair.

Ivanka Trump also took to Instagram on Friday to share a sweet picture of her reuniting with her youngest child after the RNC convention

Her make-up-free face and baggy sweats stood in stark contrast to the 34-year-old's glamorous presentation while introducing her father at the RNC on Thursday night

Several tweeters were entirely captivated by the way Ivanka's blonde locks seemed to be blowing in the wind, pointing out that it looked as if she brought her own wind machines to the Quicken Loans Arena.

Though it was likely just that fans were placed near the podium to cool her down in the crowded room, Twitters users were quick to mention that she was the only speaker whose hair was noticeably blown by those fans.

'Ivanka thought ahead and brought her wind machine,' wrote one woman in Los Angeles.

'The wind machine @IvankaTrump had blowing on her hair stopped for @realDonaldTrump's speech. Probably so it won't blow away his toupee,' wrote Marisa Shapiro.

But while the wind machine — or fans — dominated Twitter's attention during Ivanka's speech, it was quickly forgotten when Donald joined her at the podium.

Several social media users were taken aback by the odd way he greeted her on stage, first affectionately grabbing her arm, and then awkwardly patting her hip.

Though a smile remained on her face, her arm shot away from her father's side the moment he touched the spot in the strangely intimate gesture.

'What is wrong with this man?' asked a woman named Maryellen Stewart, adding a GIF of the moment to her tweet.

But many stopped talking about Ivanka's speech when Trump came on stage and greeted his eldest daughter by squeezing her arm and then awkwardly patting her hip

The strangely intimate gesture immediately caught Twitter's attention and criticism on Thursday night

'Is this real? Did he actually touch her this way tonight?' asked one incredulous commenter.

Though a few rushed to Trump's defense, others pointed out that Ivanka's body language seemed to indicate that she was uncomfortable.

'You have perverted eyes. She's smiling. She's fine,' wrote one man, while a woman answered back: 'Her body language suggests otherwise, as her arms recoil defensively.'

Others noted that it was the context in which he touched her that made the pat-down particularly odd.

In 2006, when asked what he would do if Ivanka ever posed for Playboy, he said: 'I don't think Ivanka would do that inside the magazine. Although she does have a very nice figure. I've said that if Ivanka weren't my daughter, perhaps, I would be dating her.'