If President Obama sincerely wants to fix the immigration problem in America, he could start by enforcing the laws already on the books, Sen. Jeff Sessions said Wednesday.

“A good president who actually wants to see the law enforced can make dramatic progress in a very short period of time,” the Alabama Republican said on “The Laura Ingraham Show.”

Sessions said that new laws may be needed, but added that the Obama administration is failing to address the country’s immigration system under existing statutes. “I don’t have the words to fully express how they have eviscerated the rule of law,” he said.

The senator, credited with helping real estate tycoon Donald Trump write his recently released immigration plan, said he had a good conversation with the Republican presidential candidate and sent the Trump campaign his own position papers on the issue.

“I don’t have the words to fully express how they have eviscerated the rule of law,” Sessions said of the Obama administration.

Sessions also offered guarded support for Trump’s contention that the Constitution does not need to be changed to end birthright citizenship for illegal aliens, saying it is “absolutely not an extreme position,” though Sessions stopped a bit short of endorsing it.

“Look, the matter is somewhat disputed, but Ed Meese — former Attorney General for Ronald Reagan — wrote a paper with some other scholars, a number of years ago, declaring that it does not mandate that a person that is born here with parents who are illegal get citizenship in the United States,” Sessions said. “And it’s a pretty persuasive paper.”

The senator also said Republicans need to stand for working people on trade, and they might start by acknowledging past failures.

“A little mea culpa wouldn’t hurt here,” he said, referring to his party’s support of trade deals. “You can’t win elections with 47 percent of the vote. We need the votes of the people who go to work every day.”

Sessions was one of a small number of Republicans in the Senate who voted against granting President Obama carte blanche to negotiate a free-trade deal with a group of Asian nations. He bucked his party out of concern that the deal will cost U.S. jobs.

“Any policy we adopt should serve the interests of the American people, and that doesn’t just mean Wall Street people,” he said.