Supporters of restrictions appear befuddled about what it will take to push legislation through this Congress.
Paul Kevin Curtis was arrested at his home in Corinth, near the Tennessee state line though it was not immediately known what charges he faced.
Thrust into new role as gun control lobbyists, undaunted by the initial rejection of expanded background checks for most gun purchases.
Bipartisan plan would beef up the screening process for most gun purchases in the wake of the killing of 26 students and aides at a school in December.
Conservatives see amnesty for criminals and liberals harsh punishments on a demographic group that favors Democrats in national elections.
Backing the president's push for tough new gun control laws could imperil lawmakers in his party up for re-election next year.
The bipartisan bill would bar anyone who arrived in the U.S. after Dec. 31, 2011, from applying for legal status and ultimately citizenship.
Possible sticking point ahead of Thomas Perez's confirmation hearing next week.
Treasury Secretary insists Obama administration is optimistic about congressional negotiations despite bipartisan attacks on the proposal.
May hear appeal aimed at loosening state restrictions on firearms.
