INDIANAPOLIS — Richard Lugar worked to alert Americans about the threat of terrorism years before "weapons of mass destruction" became a common phrase following the Sept. 11 attacks.
The longtime Republican senator from Indiana helped start a program that destroyed thousands of former Soviet nuclear and chemical weapons after the Cold War ended — then warned during a short-lived 1996 run for president about the danger of such devices falling into the hands of terrorists.
"Every stockpile represents a theft opportunity for terrorists and a temptation for security personnel who might seek to profit by selling weapons on the black market," Lugar said in 2005. "We do not want the question posed the day after an attack on an American military base."
The soft-spoken and thoughtful former Rhodes Scholar was a leading Republican voice on foreign policy matters during his 36 years in the U.S. Senate, but whose reputation of working with Democrats ultimately cost him the office in 2012. He died Sunday at age 87 at a hospital in Virginia, where he was being treated for a rare neurological disorder called chronic inflammatory demylinating polyneuropathy, or CIPD, the Lugar Center in Washington said in a statement.
Lugar's long popularity in Indiana gave him the freedom to concentrate largely on foreign policy and national security matters — a focus highlighted by his collaboration with Democratic Sen. Sam Nunn on a program under which the United States paid to dismantle and secure thousands of nuclear warheads and missiles in the former Soviet states after the Cold War ended.
He served for decades on the Senate Foreign Relations Committee, twice as chairman, where he helped steer arms reduction pacts for the presidential administrations of George H.W. Bush, Bill Clinton and Barack Obama, supported an expansion of NATO and favored aid to Nicaragua's Contra rebels.
"Lugar was a leader not only in the Senate but also on the world stage, where he worked tirelessly to bring pressure to end apartheid in South Africa and enforce treaties that destroyed Soviet weapons of mass destruction," Vice President Mike Pence, a former governor of Indiana, said in a statement.
Lugar tried to translate his foreign policy expertise into a 1996 presidential run, where his slogan was "nuclear security and fiscal sanity." But his campaign for the GOP nomination went badly from the start. His kickoff rally began just hours after the 1995 bombing of the Oklahoma City federal building, and he struggled to build name recognition and support.
He withdrew a year into the race after failing to win a single convention delegate, but not before foreshadowing the threat of terrorism that would become all too real on Sept. 11, 2001. Three of his television ads depicted mushroom clouds and warned of the growing danger of weapons of mass destruction in the hands of terrorist groups.
Republican Gov. Eric Holcomb directed flags across the state to be flown at half-staff to honor Lugar until his funeral, which had not yet been announced. He called Lugar "an always faithful servant to the highest ideals in every walk of his incredible life."
Indianapolis GOP leaders encouraged him to run for mayor in 1967. He spent eight years at the city's helm.
He first ran for Senate in 1974, narrowly losing to Sen. Birch Bayh in a Democratic landslide after the Watergate scandal. He ran again two years later and easily unseated three-term Democratic Sen. Vance Hartke, launching a 36-year Capitol Hill career that made him Indiana's longest-serving senator.
He built a reputation as someone willing to work across the aisle and showed he could buck his party.
His foreign policy work didn't sit well with everyone. Sen. Jesse Helms ousted him as the top Republican on the foreign relations committee in 1986 as being "too internationalist."
He was the top Republican on the Senate's Foreign Affairs Committee when he first worked with Obama, taking the then-Illinois senator with him to Russia, Ukraine and Azerbaijan in 2005 to visit weapon dismantlement sites. He then co-sponsored 2007 legislation with Obama on eliminating stockpiles of shoulder-fired missiles.
Obama frequently cited his work with Lugar during the 2008 presidential campaign as evidence of his bipartisanship and foreign policy experience.
In 2012 Lugar's tea party-backed challenger, Richard Mourdock, maintained that, "Lugar has clearly lost his way on issues like our raising the debt limit, wasteful earmark spending and massive bailouts of private companies at taxpayer expense."
The attacks on his conservatism in part led to Lugar's first defeat since 1974, as Mourdock grabbed 60 percent of the GOP primary vote.
In conceding defeat, Lugar said he knew some of his positions had been considered "heretical" by some, including his opposition to a ban on earmarks and support for immigration reform.
The Nunn-Lugar program led to about 7,600 Soviet nuclear warheads being deactivated and the destruction of more than 900 intercontinental ballistic missiles by the time Lugar left office, according to U.S. military figures. The program is credited with removing all nuclear weapons from the former Soviet republics of Kazakhstan, Ukraine and Belarus.
At Denison University in Ohio, Lugar met his future wife, Charlene. They married in 1956 and had four sons.