The 39-year-old man, who is of Swedish descent, visited Sweden in 2000 and was ignored, according to police.
The resident of Vinalhaven, a town on an island in Penobscot Bay in Maine, has frequently called the Swedish embassy in Washington D.C., sometimes as often as 10 times a day, according to the U.S. Secret Service.
"When I think about who I am, I am the Democratic Party," Christine Hallquist, a biological male who identifies as a woman, told Seven Days, a Vermont newspaper.
On many issues — government involvement in health care, legalizing marijuana, $15-an-hour minimum wage, and transgender rights, as examples — Hallquist touts the Democratic Party line in Vermont.