NEW YORK — Donald Trump’s feud with civil rights icon John Lewis has prompted at least one more Democratic lawmaker to declare he will not attend Friday’s swearing-in ceremony for the new president.

The dispute highlights the president-elect’s willingness to attack any and all political rivals, even with his inauguration just days away.

After a racially charged campaign, Trump has stirred more anger among African-American communities by criticizing Lewis, a longtime Georgia representative and a revered civil rights leader, on the eve of the holiday honoring another civil rights icon, Martin Luther King Jr.

About two dozen Democratic lawmakers, including Katherine Clark of Massachusetts, now say they will not attend Trump’s inauguration.

One of Lewis’s Democratic colleagues, Representative Ted Lieu of California, is among those who say they will skip the inauguration, in part to defend Lewis.

‘‘Trump — who lost the popular vote — has made a series of racist, sexist, and bigoted statements. In addition, he has attacked Gold Star parents, veterans such as John McCain and now civil rights icon John Lewis,’’ Lieu said.

He added, ‘‘For me, the personal decision not to attend the inauguration is quite simple: Do I stand with Donald Trump, or do I stand with John Lewis? I am standing with John Lewis.’’

On Sunday, President Obama’s chief of staff, Denis McDonough, told CNN’s ‘‘State of the Union’’ that Trump should put his differences with Lewis behind him to ‘‘send a message to the American people not only that we are willing to work together, but to the Russians that we are united.’’

The Republican billionaire slammed the Democratic representative — and his Atlanta-area district — on Saturday, a day after Lewis described Trump as an illegitimate president and vowed to skip the inauguration. It will mark the first time Lewis has skipped an inauguration since joining Congress three decades ago.