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Vice President Joe Biden will announce Tuesday that the Obama administration has “completed or made significant progress” on 21 of 23 executive actions to try to reduce gun violence developed after the mass shooting in Newtown, Conn.

They include ending the freeze on gun violence research, addressing barriers that keep states from submitting records to the national background check system and making sure federal law enforcement agencies trace guns recovered in investigations.

Biden will give his first extensive remarks on gun control since the Democratic-controlled Senate rejected a slew of gun control proposals – expanding background checks, renewing an assault weapons ban and limiting the size of ammunition clips – in April. He will use his 1 p.m. event at the White House comlex to again urge Congress to act.

“The administration has work to do…but Congress must also do its job,” a senior administration said in a preview of Biden’s remarks.

The official declined to say who Obama or Biden has met with on Capitol Hill to try to change votes, but said that Republican and Democratic senators who voted against the popular bill to expand background checks have faced an intense backlash.

“The politics of the issue are starting to change,” the offical said.

Following the school shooting in December left 20 children dead, Obama pressed Congress to pass the nation’s most aggressive gun control plan in generations. He also proposed 23 executive actions that required no congressional approval.

Also on Tuesday, the left-leaning Center for American Progress will call on Congress to remove language from the annual appropriations bill that prevents the Bureau of Alcohol, Tobacco, Firearms and Explosives from requiring dealers to conduct a once-a-year audit on their inventories for missing guns. Obama removed the language from his proposed fiscal year 2014 budget proposal to Congress.

Read the List of Executive Actions: http://blogs.mcclatchydc.com/