A staffer for the Senate Armed Services Committee said this week she expects lawmakers' strong bipartisan commitment to the nuclear deterrent will hold, despite the fiscal challenge of modernization over the next two decades. Even with a possible $54 billion boost above Budget Control Act caps to $603 billion in topline defense spending for fiscal year 2018, Rachel Lipsey, an assistant for Sen. Joe Donnelly (D-IN), said Feb. 28 that as the committee looks at the cost burden, it is...