Sen. Mike Lee, R-Utah, disagreed with the idea that immigration hearings should be delayed pending an investigation of the the Boston Marathon bombings, as his ally, Sen. Rand Paul, R-Ky., suggested.

“I don’t personally see the need not to be holding committee hearings to examine this legislation that’s been put forward,” Lee said after a speech at the Heritage Foundation today. “In some ways, what happened in Boston this week is yet another reason to examine our immigration system.”

Paul called for a delay of the immigration bill in a letter to Senate leadership today. “We should not proceed until we understand the specific failures of our immigration system,” Paul wrote. Why did the current system allow two individuals to immigrate to the United States from the Chechen Republic in Russia, an area known as a hotbed of Islamic extremism, who then committed acts of terrorism?”

“I don’t necessarily agree that it needs to be put on hold for that,” Lee said. “I do think that we need immigration reform and I think it needs to proceed.” He also reiterated his desire for an incremental approach to the immigration overhaul. “I think if you could separate out a lot of provisions in this bill, you’d get a lot more support for it,” he said.