President Trump on Wednesday said people are increasingly coming to the U.S. from "certain areas" as federal judges are weighing whether a court order blocking the president's travel ban should be lifted.

"Big increase in traffic into our country from certain areas, while our people are far more vulnerable, as we wait for what should be EASY D!" the president tweeted Wednesday.

Big increase in traffic into our country from certain areas, while our people are far more vulnerable, as we wait for what should be EASY D! — Donald J. Trump (@realDonaldTrump) February 8, 2017

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On Tuesday, federal judges grilled lawyers on both sides of the president's immigration order as they weighed whether the order should be reinstated.

The San Francisco-based 9th Circuit U.S. Court of Appeals is debating whether to reinstate Trump's travel ban while lawsuits challenging the order's constitutionality proceed.

The order, which bars all refugees and those from seven predominately Muslim countries from entering the U.S., had faced backlash from many lawmakers and has spurred protests across the country. The president and his team have said the order is necessary to keep the country safe.

The president earlier Wednesday went after the panel of federal judges weighing whether the court order blocking his travel ban should be lifted.

He argued the judges should immediately reinstate the executive order in the name of national security.

“I don’t want to call a court biased, so I won’t call it biased,” the president said at a gathering of the Major Cities Chiefs Association in Washington. “Courts seem to be so political and it would be so great for our justice system if they could read a statement and do what’s right.”

Trump said Wednesday the law gives him broad powers to control who enters and leaves the country.

"A bad high school student would understand this," he said. "Anybody would understand this."