(Editor's note: this story was updated to include Gen. VanHerck's comments during a March 16 Pentagon press briefing.) A Senate missile defense proponent today called on colleagues to collectively urge Pentagon leaders to support the Next-Generation Interceptor program -- a project launched by the Trump administration -- that has largely completed the source-selection process to proceed with development but remains under review by the Biden administration. Sen. Dan Sullivan (R-AK) asked Gen. Glen VanHerck, head of U.S. Northern Command, during...