evidence: While illegal migration at the U.S.-Mexico border continues to dominate election year politics, the country's northern border with Canada is also confronting a record-breaking surge in unlawful crossings. More than 12,200 people were apprehended crossing illegally into the U.S. from Canada in 2023—a 241 percent jump from the 3,578 arrested the previous year, The New York Times reported. Some 70 percent of those crossings occurred along a 295-mile stretch of the border along northern New York, Vermont and New Hampshire known as the Swanton Sector. [...] In a statement to the newspaper, a CBP spokeswoman said the U.S. has established a close working relationship with Canada "to facilitate lawful crossings through ports of entry and to counter irregular migration, including in the Swanton Sector."