Kemper has long publicly supported Kennedy and his MAHA - Make America Healthy Again - movement.

The half-brother of the liberal Canadian prime minister had worked for Kennedy's presidential campaign and then switched his allegiance to now President Donald Trump once Kennedy backed the Republican in August.

In turn, Trump selected Kennedy to be his Secretary of Health and Human Services. 

Kemper was amont the guests who attended the Make America Healthy Again Inaugural Ball to mark President Donald Trump's swearing-in last week in Washington. 

Kemper was sporting the green MAHA hat Wednesday during Kennedy's contentious Senate confirmation hearing on Capitol Hill.  

'The remedy known as Kennedy has officially entered the senate chamber!' Kemper exclaimed on X when RFK Jr. walked in. 

Other notables in the audience included Kennedy's actress wife Cheryl Hines, of Curb Your Enthusiasm fame and former Fox News host Megyn Kelly.   

Trudeau's half-brother has been critical of the liberal Canadian prime minister's rule.

In a recent interview with the Tucker Carlson Show, Kemper agreed that his half-brother did permanent damage to Canada.

Kemper had also predicted that his half-brother wouldn't remain as Canada's next prime minister.  

The Canadian prime minister announced his resignation earlier this month after being in power for nearly 10 years. 

The two brothers share a mother - not Trudeau's famous former prime minister father. 

In March 2023 Kennedy had launched a Democratic presidential bid in an effort to oust Democratic President Joe Biden. 

That October he announced he was officially leaving the Democratic Party - and said he would continue running for president as an independent. 

Polling had shown that Kennedy would not have been successfully able to primary Biden.