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As President Obama makes his historic, three-day visit to Cuba, GOP presidential candidates are reacting, and they're not terribly impressed or happy.

Obama arrived in Cuba yesterday, becoming the first sitting American president to visit the Communist country in nearly nine decades.

Republican front-runner Donald Trump took to Twitter to point out that Obama wasn't greeted by President Raúl Castro at the José Martí International Airport upon his arrival.

He noted that Castro met Pope Francis when he arrived last month, asserting that shows the Cuban president has "no respect" for Obama.

Ted Cruz, whose father was born and raised in Cuba, wrote an op-ed, in which he ripped the president's visit.

The Texas senator wrote that it is "so sad, and so injurious to our future as well as Cuba's, that Obama has chosen to legitimize the corrupt and oppressive Castro regime with his presence on the island."

Florida Senator Marco Rubio released a statement over the weekend, calling it "one of the most disgraceful trips ever taken by a U.S. president anywhere in the world."

This is an Obama presidential trip whose ultimate results will be giving away legitimacy and money to an anti-American regime that actively undermines our national security interests and acts against our values every single day. President Obama’s entourage will sleep in hotels controlled by the Cuban military that were confiscated by the regime and are among the $7 billion in unpaid legal claims owed to American property owners. When President Obama arrives in Havana on Sunday, he will visit Catholic Church sights and church officials, yet he’s inexplicably expected to skip St. Rita Church, where the Ladies In White have shed much blood and received routine beatings at the hands of the Castro regime for simply demanding their loved ones’ freedom.

Cuban-born U.S. Rep. Ileana Ros-Lehtinen (R-FL) has pointed out that Cuba has been arresting dissidents in the lead-up to Obama's visit.

Tune in to Fox News Channel tonight to see all three Republican presidential candidates. Cruz and John Kasich each go one-on-one with Bret Baier on a must-see "Special Report" at 6pm ET. At 9, Cruz shares more 2016 insight with Megyn Kelly. Then at 10, Trump joins Sean Hannity for an hour-long, no-holds-barred interview.

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