(CNN)In August 1985, 42-year-old Delaware Sen. Joe Biden was preparing for his first presidential bid. Courting southern support, Biden traveled to Mississippi to honor the 84th birthday of Democratic Sen. John Stennis, who had served since 1947, at a celebration attended by thousands, including 10 Senate colleagues.
How Joe Biden worked with and praised a longtime opponent of civil rights
In his speech, Biden praised Stennis, an opponent of the landmark civil rights bills of the 1960s, by comparing him to Confederate General Stonewall Jackson and portraying both men as a "thunderbolt from a clear sky." He continued his endorsement of Stennis' work by adding, "And as all of my colleagues have said here today, and you'll hear others say more of, he truly does stand like a stone wall, he is the rockbound integrity of the United States Congress."
Now in his third run for the presidency, Biden presents his ability to respect and work with ideological opponents as an asset that could return the country to a bygone era of bipartisanship and consensus. His long record on civil rights gives him much to campaign on, as does his service as vice president to the nation's first black president.
Yet Biden's outreach to and past praise of senators who opposed civil rights and supported segregation in the 1950s and 1960s has come under increased scrutiny in a Democratic Party that has shifted dramatically in the years since. News reports have questioned how his eulogy of South Carolina GOP Sen. Strom Thurmond in 2003 would fare with a new generation of voters today. In April, Biden eulogized former South Carolina Democratic Sen. Ernest "Fritz" Hollings, who evolved from a segregationist to a supporter of civil rights who endorsed Rev. Jesse Jackson for president in 1988.
To better understand those past relationships and how Biden worked with his Senate colleagues from that era, CNN's KFile team reviewed a copy of Biden's 1985 speech from Stennis' senatorial papers at Mississippi State University. Stennis' files touch on that relationship, including handwritten notes, newspaper clippings, and letters that offer a deeper exploration of the warm relationship between the pair.
Stennis was an admired member of the Senate who served for a decade as chairman of the Armed Services Committee in the 1970s and was the first Democrat to condemn the actions of Republican Sen. Joseph McCarthy in the 1950s on the Senate floor, but he was also a leading member of a group of southern senators who frequently opposed civil rights bills and later the establishment of a federal holiday honoring Martin Luther King Jr. in 1983.
Stennis, Biden said in the 1985 speech, was a mentor whom he viewed as "a legend" upon entering the Senate in 1973, which was less than a decade removed from Stennis' votes against landmark civil rights legislation in the 1960s. Citing a speech Stennis gave at a caucus meeting during Watergate, Biden said that the Mississippi senator "cast a shadow that stretches far and wide."
Biden joined the Senate after the civil rights fights of the 1960s, but he established himself as a supporter of civil rights, including affirmative action and moving to end employment discrimination. In his 2020 campaign, Biden, along with other Democratic presidential hopefuls, has made President Donald Trump's divisive racial rhetoric central to his campaign, denouncing the President's response to a deadly 2017 white nationalist rally in Charlottesville, Virginia, when he said there were "fine people" on both sides. Biden has fared strongly in recent polls among black voters.
During his Senate career, Biden worked with prominent opponents of civil rights like Thurmond and Democratic Sen. Jim Eastland, Stennis' longtime Mississippi colleague.
CNN has previously reported on other letters from the 1970s that show Biden appealing to senators who supported segregation in the 1950s, seeking their support in his legislative fight against school busing. Like Biden, Stennis and Eastland were opponents of busing as a means to desegregate schools. A spokesperson for Biden recently told CNN that the former vice president's opposition was because he felt mandatory busing was an insufficient means to equal opportunity for students.
In a statement to CNN, Andrew Bates, a spokesperson for the Biden campaign, did not directly address Biden's relationships with Stennis, Eastland and Thurmond, but said, "Joe Biden's record shows that advancing civil rights and uprooting systemic racism have been defining causes of his entire life. In the United States Senate, he championed the Voting Rights Act -- securing multiple extensions of that critical law -- fought to outlaw housing discrimination, and took on the big banks over redlining. As Vice President, he fought voter suppression efforts and helped reduce the federal prison population by over 38,000."
Stennis, who was first elected senator in 1947, had a long record as an ardent opponent of civil rights. In the 1950s and 1960s, he opposed desegregation of public schools, the Civil Rights Acts of 1964 and 1968, and the Voting Rights Act of 1965. Like other prominent opponents of civil rights and school integration, Stennis claimed to oppose such laws on the basis of states' rights. He was noted for using less inflammatory rhetoric in opposing civil rights than some of his Senate colleagues.
During what was seen as a competitive re-election fight in 1982, Stennis sought the support of black voters by voting to extend the Voting Rights Act saying, "We don't need to go back to the old days about voting. We know a lot more about it than we did before. I think we've done pretty well in Mississippi. We've elected more black officials than anybody else."
Just one year later, Stennis would vote in 1983 against recognizing Martin Luther King, Jr.'s birthday as a federal holiday. He was one of only four Democrats and 18 Republicans who voted against it, with a spokesman saying at the time that Stennis thought "we already had more than enough holidays" and that he instead supported a commemorative day. President Ronald Reagan suggested the same before signing the legislation into law.
Biden would go on to defend Stennis and Thurmond from charges of racism later in their lives, calling them captives of their eras who changed with the times. In his autobiography, "Promises to Keep," Biden wrote Stennis turned away from his past.
"In the years I'd known him, John Stennis turned away from his segregationist past," Biden wrote. "There are a whole lot of people who see his transformation as a journey of political expedience. I choose to see it as a journey of the heart -- a sincere desire to reflect the more generous instincts of Mississippians, and to honor the aspirations of all Americans."
When Biden first joined the Senate, he said Stennis befriended him shortly after he had lost his wife and one-year-old daughter in a car accident. Biden