A bipartisan group of former national lawmakers is warning No Labels off its third-party unity ticket campaign, arguing that it could send the 2024 election to the Republican-led House of Representatives for a vote.

Many legislators and political groups are worried about the possibility of a “contingent election” in the event that no presidential candidate receives a majority. A contingent election is sent to the House for a special vote to select the president, while the Senate elects the vice president.