Sen. Rand Paul is weighing whether to propose legislation that prohibits lobbyists from advocating for foreign governments.

"I'm toying with the idea, and contemplating it, and in discussions of whether or not we should just make a law that you can't do lobbying for foreign governments because it really does appear to be divided loyalty whether you're in government or not," the Kentucky Republican told Fox News Tuesday.

"I don't like the idea that Saudi Arabia spends tens of millions of dollars every year hiring people for their interests. Their ambassador should come to our capitol and tell us what the interests of Saudi Arabia are," the outspoken libertarian said. "I think that's unseemly, and a lot of people could potentially be hired that aren't working in our country's interest."

Paul made the comments while discussing former Trump administration national security adviser Michael Flynn, who was due to be sentenced Tuesday for lying to the FBI during a January 2017 interview when he told investigators he did not discuss sanctions with then-Russian Ambassador Sergey Kislyak.

Flynn's sentencing was delayed after it was revealed he could cooperate further with special counsel Robert Mueller's federal Russia investigation. Flynn provided prosecutors with information that allowed charges to be brought against two former associates for their dealings with Turkey. The retired U.S. Army lieutenant general was a registered lobbyist before the start of the Trump presidency.