Appearing on MSNBC Wednesday, Congressman John Yarmuth, D-Ky., says he is optimistic comprehensive immigration reform will pass in Congress this year despite an undertone of setbacks.The "gang of eight" in the Senate are trying to gain a super-majority as Democrats and Republicans continue to negotiate. Among the issues being hashed out are provisions dealing with a pathway to citizenship that are linked to tighter enforcement of the U.S. borders.Recently, Sen. Rand Paul, R-Ky. warned that conservatives would be pulling back from the planif stricter rules to protect borders are not added to the bill.But Yarmuth, who is part of a bipartisan "gang of eight" in the House, says lawmakers remains motivated to pass an overhaul of the immigration system due to an unprecedented group of diverse interests.Watch:Yarmuth acknowledged the House version will be more considerably more conservative than whatever the Democratic-controlled Senate passes. The GOP-controlled House would be staunchly against any legislation that would be seen as amnesty for illegal immigration.Last month, Congressman John Carter, R-Tx., another "gang of eight" member, said as much.From The Huffington Post: