For years, Republicans have adhered fiercely to their bedrock conservative principles, resisting Democratic calls for tax hikes, comprehensive immigration reform and gun control. Now, seven weeks after an electoral drubbing, some party leaders and rank-and-file alike are signaling a willingness to bend on all three issues.

What long has been a nonstarter for Republicans — raising tax rates on wealthy Americans — is now backed by GOP House Speaker John Boehner in his negotiations with President Barack Obama to avert a potential fiscal crisis. Party luminaries, including Louisiana Gov. Bobby Jindal, have started calling for a wholesale shift in the GOP’s approach to immigration after Hispanic voters shunned Republican candidates. And some Republicans who previously championed gun rights now are opening the door to restrictions following a schoolhouse shooting spree earlier this month.