Sen. Kay Hagan (D-N.C.) called Thursday for a two-month extension in the enrollment period for the new health-care law, saying the current problems the federal system is experiencing " are absolutely unacceptable."

Hagan joins a growing chorus of Senate Democrats — several of whom are up for reelection next year — who are lobbying the Obama administration to make concessions in light of the glitches still affecting the federal health insurance marketplace and HealthCare.gov. Rep. Jeanne Shaheen (D-N.H.) has already called for delaying the March 31 enrollment deadline, as has Sen. Mark Begich (R-Alaska.). Sen. Joe Manchin (D-W.Va.) has asked for a one-year delay in the individual mandate that Americans buy insurance, which is likely to encounter significant White House resistance.