Former U.S. Capitol police officer Harry Dunn is competing with Maryland state Del. Adrian Boafo, the Democratic Party’s favored candidate to succeed retiring Rep. Steny Hoyer (D-MD) in the race for Maryland’s 5th Congressional District. This isn’t the first time Dunn has run for the House. In 2024, he lost to then-Maryland state Sen. Sarah Elfreth in the Democratic primary for Maryland’s 3rd Congressional District. Elfreth went on to win the se…