U.S. Rep. Elijah Cummings, a Maryland Democrat, died on Thursday at the age of 68. Cummings, who represented Baltimore in Congress for more than 23 years, was the chairman of the House Committee on Oversight and Reform, leading recent investigations into the Trump administration.

Here is what his colleagues in Colorado’s congressional delegation have said about his death.

“Our country lost a giant today. Elijah Cummings was a true statesman and a relentless seeker of justice. He was a patriot in every sense of the word. He will be missed.” – Rep. Diana DeGette (via Twitter)

“A terrible loss for our country. Congressman Cummings was a leader in our Congress, urging us towards truth and justice but also steering us to always find the heart and humanity in our service. My thoughts and prayers are with his family at this difficult time. Rest in power Mr. Chairman. We will miss you.” – Rep. Joe Neguse (via Twitter)

A terrible loss for our country and our Congress. Elijah Cummings was a tireless champion for justice and equality, and will be deeply missed. My condolences and prayers for his wife and their entire family.

Rest in power Mr. Chairman. We will miss you. https://t.co/kPXWayHNI8

– Joe Neguse (@JoeNeguse) October 17, 2019

“I am saddened by the loss of Elijah Cummings. I offer my prayers to his family as they grieve.” – Rep. Scott Tipton (via Twitter)

“I am saddened by the loss of my colleague Representative Elijah Cummings. My thoughts are with his wife, children, and staff during this time of grief and healing. May he Rest In Peace.” – Rep. Ken Buck (via Twitter)

“I am sad to hear of the loss of Rep. Elijah Cummings. I offer my prayers to his family, friends, and staff, as they grieve. May he Rest In Peace.” – Rep. Doug Lamborn (via Twitter)

“We lost one of the fiercest advocates for our democracy this morning. Always putting his constituents and this country first, Chairman Elijah Cummings’s courage will be missed. My thoughts are with his family and community today.” – Rep. Jason Crow (via Twitter)

“Our country lost one of our best today. A man of integrity & compassion, Rep. Elijah Cummings served the people of Maryland & this country honorably. His work to protect & defend our democracy will never be forgotten. My deepest condolences to his family.” – Rep. Ed Perlmutter (via Twitter)

“Chairman Elijah Cummings was a man of conviction and principle, and a strong advocate for the people of Maryland. My deepest condolences to his family, constituents, colleagues, and staff.” – Sen. Michael Bennet (via Twitter)

Chairman Elijah Cummings was a man of conviction and principle, and a strong advocate for the people of Maryland. My deepest condolences to his family, constituents, colleagues, and staff. https://t.co/cqiaUrrfta

– Michael Bennet (@SenatorBennet) October 17, 2019

“.@RepCummings was a tireless advocate and one of the most fearless leaders I’ve had the pleasure of serving alongside. Jaime and I are praying for Elijah’s family and loved ones during this difficult time. He will be greatly missed.” – Sen. Cory Gardner (via Twitter)