Representative Tulsi Gabbard, a Hawaii Democrat and 2020 presidential candidate, broke with most members of her party on Wednesday and voted “present” on the two articles of impeachment charging President Trump with abuse of power and obstruction of Congress.

Ms. Gabbard, the only presidential candidate who had a vote on impeachment, criticized the proceedings as “a partisan process, fueled by tribal animosities,” and said she had introduced a resolution to censure Mr. Trump, rather than remove him from office.

“I came to the conclusion that I could not in good conscience vote either yes or no,” Ms. Gabbard said in a statement. “I am standing in the center and have decided to vote present.”

Ms. Gabbard was not the only Democrat to break from the mostly party-line vote.

Representatives Collin C. Peterson of Minnesota and Jeff Van Drew of New Jersey voted against both articles of impeachment, while Representative Jared Golden of Maine opposed only the article accusing the president of obstruction of Congress.