Rep. Darrell Issa personally apologized for cutting off Cummings' mic in a House hearing.
Blog Briefing Room
The former national security adviser says Russia is "vulnerable" to sanctions.
Wayne LaPierre said the NRA "will not go quietly into the night."
Sanders said he had not decided if he would run as a Democrat or independent.
Jay Carney says the Crimean incursion is not a show of strength for Moscow.
The White House on Thursday moved to impose economic sanctions and visa restrictions.
A new poll says only 30 percent of Arizonans approve of McCain.
The president says he is "champion-in-chief of comprehensive immigration reform."
The former Massachusetts senator's poll numbers have declined over the past few months.
“Ignoring threats to our national security is the Obama doctrine,” the ex-ambassador said.