Billionaire entrepreneur Mark Cuban says President Trump’s temporary ban on refugees and  travelers from seven Muslim-majority nations is a “horrible” misstep.

“Let’s just be real, real clear. The ban was half-assed and half-baked, right?” Cuban said on CNN’s “OutFront” Tuesday.

“If the goal was security, why do you leave off any other countries that hosted terrorism?” asked Cuban, who endorsed Hillary ClintonHillary Diane Rodham ClintonPapadopoulos claims he was pressured to sign plea deal Here's why Biden, Bernie and Beto are peaking The Hill's Morning Report - Presented by Pass USMCA Coalition - Dems look for traction following Barr-Mueller findings MORE over Trump during the election.

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“It was half-baked, it wasn’t thought out, it was rushed, and it was ridiculous. When something like this happens, it calls into question the management skills of the guy in charge.”

Trump signed an executive order Friday imposing a 90-day ban on travelers from Iran, Iraq, Libya, Somalia, Syria, Sudan and Yemen.

It also froze general refugee admissions into the U.S. for 120 days, and created an indefinite ban on Syrian refugees.

Trump’s move sparked global debate, with Democrats and human rights organizations arguing it is unconstitutional and biased against Muslims.

The president has dismissed such criticisms, countering that his action is crucial for protecting national security from radical Islamic terrorism.

The measure has created confusion for federal agencies, with some struggling with or resisting its implementation.

Reports emerged Tuesday that about 900 State Department officials had signed a dissent cable critical of Trump’s order.