Pres. Obama on Newtown, CT: 'We can't tolerate this any longer.'
Sen. Dianne Feinstein will introduce an assault weapons ban in the next Congress.
Newtown had its own recent fight over gun control.
The State Dept. is expected to get its independent report on Benghazi today.
A Senate committee holds a hearing on voting laws this week.
News organizations are fighting big bills charged by the Romney campaign.