WASHINGTON >> Rep. Don Young, the gruff Republican veteran who represents the entire state of Alaska, apologized today for referring to Hispanic migrant workers as "wetbacks" in a radio interview.

"I apologize for the insensitive term I used during an interview in Ketchikan, Alaska," Young said in a statement after lawmakers from both political parties called on him to apologize.

"There was no malice in my heart or intent to offend; it was a poor choice of words," Young said. "That word, and the negative attitudes that come with it, should be left in the 20th century, and I’m sorry that this has shifted our focus away from comprehensive immigration reform."

The 79-year-old Young, the second-most senior Republican in the House, issued a statement late Thursday seeking to explain his remark after using the derogatory term to describe the workers on his father’s farm in central California, where he grew up.

Young, discussing the labor market during an interview with radio station KRBD in Ketchikan, said that on his father’s ranch, "we used to have 50-60 wetbacks to pick tomatoes." He said, "It takes two people to pick the same tomatoes now. It’s all done by machine."

"Wetbacks" often refers to Mexican migrants who have entered the country illegally, and Hispanics consider the word, which can be used to disparage all Hispanics, to be highly pejorative.

Young’s explanation on Thursday wasn’t good enough for lawmakers from either political party. His use of the word drew swift criticism from fellow Republicans working to temper the party’s hardline positions on illegal immigrants and to improve GOP standing among Hispanic voters.

House Speaker John Boehner, R-Ohio, said Young’s remarks were "offensive and beneath the dignity of the office he holds." Boehner said he didn’t care why Young said it; "there’s no excuse, and it warrants an immediate apology."

Republican National Committee chairman Reince Priebus said the party offers a "beacon of hope" for those seeking liberty around the world and that Young’s remarks "emphatically do not represent the beliefs of the Republican Party."

"Shame on Don Young," said Congressional Hispanic Caucus chairman Ruben Hinojosa, D-Texas. "It is deeply disheartening that in 2013, we are forced to have a discussion about a member of Congress using such hateful words and racial slurs."

Arturo Carmona, executive director of Presente.org, an online Latino advocacy organization, said Young should resign.

In his statement on Thursday, Young said he had "used a term that was commonly used during my days growing up on a farm in central California. I know that this term is not used in the same way nowadays and I meant no disrespect."

He added that during the interview, he had "discussed the compassion and understanding I have for these workers and the hurdles they face in obtaining citizenship" and said the country must tackle the issue of immigration reform.

Among his jobs before entering politics were teaching school to indigenous Alaskans and working as a tugboat captain in the Yukon. Since entering Congress in 1973, Young has been known for his hot temper, his salty language and his independent streak.

As resources committee chairman in the late 1990s, he took on environmentalists and the Bill Clinton administration in pushing for oil drilling in the Arctic National Wildlife Refuge and logging in Alaska national forests. He headed the transportation committee during much of the George W. Bush administration, during which he defied his own party’s anti-tax positions by supporting an increase in the federal gas tax to help pay for bridge and highway construction.

It was under Young’s chairmanship that the "bridge to nowhere," which was actually two proposed Alaska construction projects, became a symbol for questionable special projects inserted into spending bills.

He also is currently under investigation by the House Ethics Committee, which is looking into whether he failed to report gifts on his annual disclosure forms, misused campaign funds and lied to federal officials. The investigation comes from an earlier Justice Department probe into whether Young accepted gifts in return for political patronage. Young has said that Justice cleared him of those charges.

"I’ve been under a cloud all my life," he told reporters in Juneau Thursday. "It’s sort of like living in Juneau. It rains on you all the time. You don’t even notice it."

Young said he plans to run for re-election next year, saying he doesn’t know anyone who can do a better job than he does in representing the state.

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Associated Press writer Becky Bohrer in Juneau, Alaska, contributed to this report.