The man who will soon be Congress's longest serving member said Sunday that he regrets the lack of sincerity, warmth and compromise on Capitol Hill.

Rep. John Dingell (D-Mich.), who has served in the House since 1955, said the "lack of collegiality, refusal to compromise [and] absolute reluctance to work together" make it difficult for lawmakers to achieve common goals.

"Today, members are so busy getting reelected. There's so much pressure on them from outside to be partisan and to fight. Compromise has become a dirty word," Dingell said on ABC's "This Week." 

Dingell, 86, shared several reflections, including his memory of listening to a speech by President Franklin Roosevelt as a young man from the House gallery.

He also said that his vote for the 1964 Civil Rights Act almost cost him his seat.

"It was a very nasty election," Dingell said.