President Donald Trump on Thursday, Oct. 17, expressed his respect for veteran Rep. Elijah Cummings after the congressman’s office announced his death in a statement early on Thursday, Oct. 17.

The president took to Twitter to send his “warmest condolences to the family and many friends” of Cummings, who died at the age of 68.

Cummings’s office said the Maryland representative “passed away at Johns Hopkins Hospital due to complications concerning longstanding health challenges.”

Setting aside their exchanges of attacks in summer, President Trump called Cummings a “highly respected political leader.” 

“I got to see first hand the strength, passion, and wisdom of this highly respected political leader,” the president wrote. “His work and voice on so many fronts will be very hard, if not impossible, to replace!”

According to his biography, Cummings was born in Baltimore in 1951. He was elected as a Democrat by special election in 1996 to fill the vacancy caused by the resignation of Rep. Kweisi Mfume, and re-elected to the 12 succeeding Congresses.

Cummings served as chairman of House Oversight and Reform Committee, which is cooperating with other House committees to oversee an impeachment probe into President Trump.

In the summer, President Trump and the Democratic congressman clashed over policies, subpoenas, and social media posts several times.