"I am pleased to introduce legislation that strikes a balance between states' rights and individuals' Second Amendment rights outlined by the Constitution," Thune said. "Rather than establish a national standard, our bill will ensure that law-abiding citizens are able to carry concealed firearms while at the same time respecting the laws of the respective states they visit."
Thune has introduced similar legislation before, and in 2009 it received 58 votes in support — a majority, but two shy of the 60 votes needed to dodge a filibuster under Senate rules.
Two Senate Democrats, Mark Begich (D-Alaska) and Joel Manchin (D-W.Va.), have proposed a Senate companion bill to H.R. 822 that they believe can be passed, in particular because it is more respectful of the rights of states that do have permitting requirements.
A spokeswoman for Begich noted that the National Rifle Association (NRA) supports the Begich bill.
Co-sponsors on Thune's bill include Judiciary Committee ranking member Chuck Grassley (R-Iowa), former committee ranking member Orrin Hatch (R-Utah) and others, including Sens. Rand Paul (R-Ky.) and Marco Rubio (R-Fla.).
— This story was updated on March 21 to reflect the differences in Thune's bill and the one proposed by Sens. Begich and Manchin.