Rep. Doug LaMalfa, a California Republican known for his expertise on water and forestry issues, has died at 65, according to statements from GOP officials.

LaMalfa, a fourth-generation rice farmer and former state legislator, was serving his seventh term representing a rural district in the northeast corner of the state. He sat on the Agriculture, Natural Resources, and Transportation and Infrastructure committees.

"Doug was a loving father and husband, and staunch advocate for his constituents and rural America," House Majority Whip Tom Emmer (R-Minn.) said in a statement posted to social media. "Our prayers are with Doug’s wife, Jill, and their children."

Republicans who were close with LaMalfa were not aware of any health issues he had, and many were in shock Tuesday morning about his sudden passing, according to six GOP lawmakers who spoke on the condition of anonymity to discuss private matters.

LaMalfa suffered an aneurysm and then a heart attack after being taken into surgery, according to one of the lawmakers and two others familiar with the matter.

LaMalfa's seat was among those targeted by California Democrats in their bid to redraw district lines to counter President Donald Trump's mid-decade redistricting push in Texas and other states. He was widely expected to have a difficult path to reelection this year.

Rep. Richard Hudson (R-N.C.), chair of the House GOP campaign arm, remembered LaMalfa as a “real gearhead and motorsports fan" as well as a "principled conservative and a tireless advocate for the people of Northern California."

"Doug brought grit, authenticity, and conviction to everything he did in public service," Hudson said.

Under California law, Gov. Gavin Newsom has 14 days to set a date for a special election. He could set the date as soon as mid-May, though he could also schedule it to coincide with the state's June 2 primary. The winner would serve out LaMalfa's term under current district lines. (Text, excluidng headline: POLITICO)

•PHOTO: Rep. Doug LaMalfa, R-Calif., is seen outside a House Republican Conference speaker election meeting in Longworth Building on Tuesday, October 24, 2023. (Tom Williams/CQ-Roll Call, Inc via Getty Images)