His absence is notable for several reasons, including that he is the best-known resident of the Second Congressional District of Nebraska. The Omaha-area enclave, one of this year’s most competitive house races, awards an electoral college vote as part of a system used by Nebraska and Maine as the winner-take-all method. The opposite is elsewhere.
The district, which has strong ties to the insurance and rail industries, can play an important role when the presidential election is extremely close. President Trump won there in 2016, as he performed statewide. Not wanting to take a chance this year, both campaigns are investing resources.
The 90-year-old Mr. Buffett, president and chief executive officer of Berkshire Hathaway Inc., was an early supporter and informal economic adviser to former President Obama in his 2008 and 2012 races and also campaigned for Hillary Clinton in 2016 for voters. Voting on Oliha’s Ollie the Trolley on Election Day as part of an effort to get votes.
Through his assistant, Mr. Buffett declined to comment. The Biden allies would not weigh in on whether they sought their support.