Far-left activists stay in 5-star Cuban hotel as island suffers total blackout

Trump imposed an oil blockade on Cuba earlier this year after the U.S. captured former Venezuelan President Nicolás Maduro.

"The American government makes it illegal for Americans to stay wherever they want when they're in Cuba," Piker told his followers. "They have to stay in what they've declared as 5-star hotels."

On Tuesday, Secretary of State Marco Rubio, the son of Cuban immigrants, made comments about the island, saying "they have to get new people in charge" in Havana. 

Cuban officials have continued to blame U.S. sanctions for the country's economic hardships, while analysts say the government is facing mounting pressure from ongoing blackouts, shortages of basic goods and growing public frustration.

Fox News' Amy Galo contributed to this report.