* Sen. Lindsey Graham (R-S.C.) says a spelling error hurt FBI efforts to monitor Tamerlan Tsarnaev.

* The White House declines GOP requests to hold Tamerlan's brother, Dzhokhar, as an enemy combatant.

* Sen. Rand Paul's (R-Ky.) wants to put the breaks on the immigration debate in light of the Tsarnaev's Chechen roots.

* Congress will be briefed on Boston on Tuesday.