In this Nov. 9, 2017, photo,House Minority Leader Nancy Pelosi, D-Calif., speaks to reporters on Capitol Hill in Washington. Pelosi is slamming a Republican bill that would make it easier for gun owners to legally carry concealed weapons across state lines (AP Photo/J. Scott Applewhite, File)

In this Nov. 9, 2017, photo,House Minority Leader Nancy Pelosi, D-Calif., speaks to reporters on Capitol Hill in Washington. Pelosi is slamming a Republican bill that would make it easier for gun owners to legally carry concealed weapons across state lines (AP Photo/J. Scott Applewhite, File)

WASHINGTON (AP) — House Democratic Leader Nancy Pelosi on Monday slammed a Republican bill that would make it easier for gun owners to legally carry concealed weapons across state lines ahead of a House vote later this week. It would be the first action by Congress on guns since mass shootings in Nevada and Texas killed more than 80 people.

Pelosi accused Republicans of doing the bidding of the National Rifle Association, which calls the concealed-carry law its top legislative priority.

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“Two months after two of the most deadly shootings in modern American history, Republicans are brazenly moving to hand the NRA the biggest item on its Christmas wish list,” Pelosi, D-Calif., said in a statement.

“Far from making Americans safer, this deadly, extreme Republican bill would make it legal for more dangerous and untrained people to carry loaded, hidden guns in more public places and would inexplicably try to make the weakest and most dangerous state concealed-carry laws the law of the land in all 50 states,” she said.

Republicans said the bill would allow gun owners to travel freely without worrying about conflicting state laws or civil suits.

Lawmakers expect House action on Wednesday.

The bill includes a provision to strengthen the FBI database of prohibited gun buyers after the Air Force failed to report the criminal history of the gunman who slaughtered more than two dozen people at a Texas church.

The Air Force has acknowledged that the Texas shooter, Devin P. Kelley, should have had his name and domestic violence conviction submitted to the National Criminal Information Center database. The Air Force has discovered several dozen other such reporting omissions since the Nov. 5 shooting.

If the concealed-carry bill is approved by the House and Senate and signed into law, key state and local laws protecting against gun violence could be overridden, Pelosi said, “inviting concealed weapons into schools, churches, bars and public lands.”

The bill is the latest “but certainly not the last Republican attempt to wipe out common-sense” gun laws, she said, citing GOP efforts to block legislation tightening laws on background checks, refusal to create a bipartisan Select Committee on Gun Violence and a push to ease restrictions on silencers and armor-piercing bullets.