Where will Obama draw the line on GOP bills to roll back reform?

“Big Republican election gains in Congress will position the GOP to aggressively challenge Obamacare in 2015. Now the questions are how sweeping Republican efforts will be to roll back the law, and whether the party will pursue its longstanding goal of restructuring Medicare and Medicaid. Everyone will be watching where President Barack Obama draws the line with his veto pen.
Repealing the Patient Protection and Affordable Care Act was a key campaign issue propelling Republicans to gain control of the Senate and their largest majority in the House since the Great Depression. Sen. Mitch McConnell (R-Ky.), who is expected to be the new Senate majority leader, has vowed to dismantle Obamacare “root and branch.””