The nonprofit 314 Action, which works to elect scientists to public office, has added $550,000 to its advertising investment in broadcast and cable advertising in New York's First Congressional District, where Nancy Goroff, who is on leave from her position as chairwoman of Stony Brook University's chemistry department, is challenging Representative Lee Zeldin.
The move, which follows an initial investment in that and another congressional race, follows reports that the Congressional Leadership Fund, a super PAC dedicated to electing Republicans to the House of Representatives, has reserved a $750,000 expenditure for Mr. Zeldin's re-election effort.
The 314 Action investment will supplement recently announced $1.2 million broadcast, cable, and digital campaigns to run throughout the district through the Nov. 3 election.
President Trump won the district by 12 percentage points in 2016, when Mr. Zeldin, a Republican, defeated Perry Gershon, an East Hampton resident, by just 4 points. Polls now show the president tied or losing the district to former Vice President Joe Biden. Two polls conducted by Democratic groups had Mr. Zeldin leading Ms. Goroff by single digits, while a third had her with a narrow lead.
The Cook Political Report and the website Daily Kos have both moved the race in Ms. Goroff's favor, but both predict the race "leans Republican."