Sen. Manchin: Background check bill "expands the Second Amendment"

(CBS News) As senators in support of tighter gun control laws renew the fight to pass the so-called background check bill in Congress this week, Sen. Joe Manchin -- who reached a bipartisan agreement on gun legislation with Republican Sen. Pat Toomey last month -- says he is not ready to give up.

Manchin insists "the background check bill is possible to get passed," Tuesday on "CBS This Morning," with "some adjustments" to the bill and to the conversation around the the proposed changes.

"We need to educate law-abiding gun owners, like myself, people that might belong to the NRA ... This bill not only protects your Second Amendment but expands the Second Amendment."

"Some people [are] concerned it might infringe on any family transfers," Manchin said, addressing the issues of personal property rights. "It doesn't at all, but we're going to clarify that language ... Any time that you transfer to family whether it's directly or online, it would not be subjected to a background check."

He added, "If you're going to a commercial [gun vendor], whether it be a gun show or online, it should subject to a background check."

Manchin addressed the combative rhetoric that characterized the NRA's annual convention in Houston over the weekend and dismissed many of the NRA's claims about the bill as "just not true" and "rattling the cage."

The senator -- who previously received an A-rating from the NRA -- emphasized that the proposed bill "does things they've tried to do for 20 years ... It treats law-abiding gun owners like myself and a lot of my friends in the NRA ... the way they should be treated."

NRA leaders have said the bill could be a "first step" toward more restrictive legislation in the future, but Manchin objects to the suggestion, and said, "This is constitutional, this has to take a legislative action for any changes," unlike many regulatory agencies that "sometimes overreach."