Barack ObamaBarack Hussein ObamaTrump taps vocal anti-illegal immigration advocate for State Dept's top refugee job The federal judiciary needs more Latino judges Obama plans to use Netflix deal to stop political divisiveness MORE highlights his work on nuclear proliferation with Republican Sen. Richard Lugar (Ind.) in a new television ad that ties national security to U.S. global leadership.

In the ad, Obama tells voters that nuclear proliferation is the most significant threat to U.S. security. He also tells supporters that the U.S. was once "a beacon of light around the world" and that it must restore its leadership role to work with other nations in reducing the proliferation of nuclear weapons.

"We have to lead the entire world to reduce that threat," Obama says.

Obama promotes his work with Lugar to secure funding for nonproliferation efforts. The two began their push for funding in 2005; it was granted in 2007. Their initiative provided $48 billion for efforts to destroy conventional weapons stockpiles and locate and apprehend weapons of mass destruction.

Today's ad comes after Obama announced cooperation with Lugar on another initiative: the Indiana Republican's bill, introduced today with Sen. Joe BidenJoseph (Joe) Robinette BidenTop Oversight and Foreign Affairs Dems ask Black Cube for answers on alleged Iran deal op Biden, Corker honored with Freedom House human rights awards What's wrong with the Democratic Party? Just look at California MORE (D-Del.), to triple non-military aid to Pakistan. Obama and Lugar serve together on the Senate Foreign Relations Committee, where Lugar sits as ranking member. Lugar has endorsed John McCainJohn Sidney McCainTo woo black voters in Georgia, Dems need to change their course of action Senate panel again looks to force Trump’s hand on cyber warfare strategy Senate panel advances 6B defense policy bill MORE for president.

See the video below: