Speaker Candidates, Friendly Fire, Poll: Trump and Carson Double Digits

Clinton v Sanders: Will the gloves come off?
Hillary Clinton and Bernie Sanders have a long history.
Randi Kaye reports on their relationship as they compete for the Democratic Presidential nomination.

Another Shooting
1 Dead, Student arrested in Arizona College Shooting
Obama arrives in Oregon to visit victim's families
Contributor: Sara Sidner, Correspondent
Protestors greet President Barack Obama in Roseburg, Oregon
Democrats call for tougher gun laws after Roseburg shooting at Umpqua Community College
Guest: Richard Blumenthal, Senator
Senators want background check "loophole" closed

Who Will Be Speaker?
Sources: Ryan thinks and prays about Speaker run
Contributor: Dana Bash, Senior Political Correspondent
Congressman: Ryan not a "hard no" on Speaker run
Kevin McCarthy: Ryan would be an "amazing Speaker"

New Poll
Poll: Trump, Carson only GOP candidates in double digits
Contributor: Athena Jones, Correspondent
Carson: "I'm not politically correct."
Carson under assault after controversial statements
Carson on Oregon shooter: "I'd much rather go down fighting."
Cruz: Trump supporters eventually will come to me


Friendly Fire
Four days away - the Democratic debate
Contributor: Jeff Zeleny, Senior Washington Correspondent
Biden's teams meeting this weekend
Clinton meets with "Black Lives Matter" activists
Biden's team meets with DNC officials
Ballot deadlines creep closer as Joe Biden decides
"Draft Biden" ads are yanked from TV
Sanders criscrosses country ahead of debate
Sanders: "We're running to win"


Syria a priority but training to end
U.S. effort to train rebels falls apart
Contributor: Barbara Starr, Pentagon Correspondent
U.S. suspending program to train Syrian rebels