Former Democratic presidential candidate Hillary Clinton on Friday praised the late Elijah Cummings, a leading force in the impeachment inquiry of President Donald Trump, as someone who "stood against corrupt leadership."

The former Democratic lawmaker's funeral drew a Who's Who of Democratic leaders past and present to the New Psalmist Baptist church in Cummings' hometown of Baltimore, as well as thousands of other supporters.

Former Presidents Barack Obama and Bill Clinton, as well as 2020 Democratic candidates like Joe Biden and Elizabeth Warren, were among those attending the funeral.

A son of sharecroppers, Cummings served for 22 years in the U.S. House of Representatives before his death on Oct. 17. He was an ardent civil rights voice who decades ago endured violence from white mobs as he and other African-Americans sought to integrate a public swimming pool.

The 13-term congressman was credited with helping calm tensions in Baltimore in 2015 when violence erupted following the death of an African-American man in police custody.

He was a high-profile antagonist of Trump, who reacted to a weekend of deadly violence during a "Unite the Right" rally in Virginia saying there were "very fine people" on both sides of the demonstrations.

The funeral was being held in Cummings' congressional district, which Trump vilified earlier this year as "disgusting, rat and rodent-infested."