U.S. Sen. Chris Van Hollen (D-Md.) speaking in February 2025. (Photo by Bryan P. Sears/Maryland Matters)Over his 36-year political career, Sen. Chris Van Hollen (D-Md.) has waged high-profile policy fights with legislative leaders in Annapolis, defeated a Kennedy scion and a popular Republican incumbent en route to winning a congressional seat. In the House of Representatives, Van Hollen was a top lieutenant to Speaker Nancy Pelosi (D-Calif.) be…