Transcript for Congressman denied committee assignments over racially charged comments

are impacted and feel that. We turn to another headline out of Washington. House Republicans taking a stand against one of their own, Iowa congressman Steve king denying him new committee assignments over racially charged comments and Mary Bruce has more. She's there on capitol hill for us. Good morning, Mary. Reporter: Good morning. Well, congressman king is facing fierce backlash after he questioned why white supremacy is considered offensive. This morning he is being condemned by leaders of his own party and punished. The big question, how long can he hold on to his job? This morning, Republican congressman Steve king is facing growing calls for his resignation, even from his own party. What he said was reprehensible and will lead to his resignation from congress. I wish he'd resign. Reporter: Stripped of his committee assignments punishment after the Republican told "The New York Times" white nationalists, white supremacist, western civilization, how did that language become offensive? King says the comments were mischaracterized. I am simply an American nationalist. Reporter: But that explanation not enough for his colleagues. Today voting on a resolution of disapproval. I call on my colleagues on both sides of the aisle to join me in breaking the deafening silence and letting our resounding combination condemnation be heard. Reporter: The top Republican in the senate Mitch Mcconnell says his comments are unworthy of his position but at the white house, the president is mum. What about Steve king's remarks about white supremacy? I haven't been following it. Reporter: Despite the forceful reprimand he seems determined to stay in congress saying I will continue to point out the truth and work with all the vigor tt I have to represent iowansor theext two year. We will watch those today. Also in Washington, confirmation hearings for

This transcript has been automatically generated and may not be 100% accurate.