WASHINGTON — House Republicans approved a measure Thursday that aims to block the Obama administration from moving to shield millions from deportation, a largely symbolic legislative response to the president’s new immigration policy that reflects lawmakers’ limited options. The House measure, approved on a 219-197 vote, is the first step in a two-part plan devised by GOP leadership to provide an outlet for Republican frustration over the White House plan while also preventing the issue from provoking another government funding crisis. House Speaker John A. Boehner, R-Ohio, and incoming Senate Majority Leader Mitch McConnell, R-Ky., are intent on avoiding a repeat of past fiscal brinkmanship as the GOP is set to assume full control of Congress.