Rep. Elijah Cummings (D-MD) died early this morning from complications of various health issues, according to his office. He was 68 years old.

A central figure in the impeachment inquiry in Congress, Cummings was the chair of the House Oversight and Reform Committee. He was one of three chairmen leading the investigation into President Donald Trump’s call with and actions regarding Ukraine. Cummings was an outspoken critic of the President, and was the target of a much-criticized tweet from Trump calling Cummings’ city of Baltimore a “rat-infested mess.”

The Baltimore native has received praise from both sides of the political aisle for his years of service in Congress.

From Democrat Joe Kennedy III:

Elijah Cummings refused to be told what he could become or where his dreams might end. He refused to accept injustice in his community or inequality in his country. His towering presence will be missed but his legacy will live on with us all. https://t.co/HOVLcwjATh — Rep. Joe Kennedy III (@RepJoeKennedy) October 17, 2019

To Republican Chip Roy:

Saddened to learn of the passing of @RepCummings this morning. In my time working with him, he was upfront, gracious, & caring. Here, in July after a typical debate with @OversightDems, he asked me to see my son & I am so grateful. God bless you, faithful servant. RIP pic.twitter.com/QG29U2ftAh — Chip Roy (@chiproytx) October 17, 2019

The passing of Cummings will mean that Speaker Nancy Pelosi will have to pick a new chair for Cummings’ committee and a special election will eventually be held in his district, MD-07, which is a D+51 district and will likely feature several candidates vying for the job.