8:00 a.m. E.T.

New York Times: “‘These Tragedies Must End,’ Obama Says”

Washington Post: “Obama in Newton: ‘We Will Have to Change’”

Wall Street Journal: “GOP Poses Millionaire Tax-Rate Increase”

Associated Press: “Gun Control Debate Begins to Simmer After Massacre”

Politico: “Plenty of 2012 Pitfalls for Obama and Romney”