TRUMP: NO APOLOGY!  — 'TRUMP IS TOAST ... Boom to bust': Luntz sees onslaught by veterans if no apology - HILLARY on Trump and GOP field: ‘can be hard to tell the difference’  —  By Mike Allen (@mikeallen; mallen@politico.com) and Daniel Lippman (@dlippman; dlippman@politico.com)

Democrats lose control of presidential event  —  Story highlights  —  Phoenix (CNN)A town hall for liberal activists featuring two Democratic presidential candidates was interrupted by dozens of demonstrators on Saturday who shouted down the contenders and demanded they address criminal justice issues and police brutality.

Walker: 'I don't know' if being gay is a choice  —  Gov. Scott Walker (R-Wis.) said on Sunday he is not sure if homosexuality is a choice.  —  The 2016 GOP presidential candidate refused comment on the issue during an interview on CNN's “State of the Union.”

Bill Cosby, in Deposition, Said Drugs and Fame Helped Him Seduce Women  —  He was not above seducing a young model by showing interest in her father's cancer.  He promised other women his mentorship and career advice before pushing them for sex acts.  And he tried to use financial sleight …

Obama pushes to extend gun background checks to Social Security  —  Seeking tighter controls over firearm purchases, the Obama administration is pushing to ban Social Security beneficiaries from owning guns if they lack the mental capacity to manage their own affairs, a move …

KKK Faces Off With New Black Panther Group in Heated, Competing Rallies at South Carolina Statehouse  —  The Ku Klux Klan faced off with a group affiliated with the New Black Panthers Saturday at the South Carolina Statehouse, as opposing rallies attracting about 2,000 at one point led to a rock-throwing scuffle.

Muhammad Abdulazeez reportedly spotted at gun range before deadly attack  —  CHATTANOOGA, Tennessee(WDEF) - According to a tip that came into WDEF, Muhammad Abdulazeez was spotted at a gun range just weeks before killing four Marines and one Navy Petty Officer.

‘War is here on US soil’: Ft. Hood victim says Obama WH needs to get head out of a**  —  The White House has its head where it doesn't belong.  —  Saying the “war is here on U.S. soil,” a victim of the 2009 Fort Hood attack by Army Major Nidal Malik Hasan described the killing of four U.S. Marines …

Bernie Sanders draws his biggest crowd yet — in Arizona of all places  —  Bernie Sanders drew more than 11,000 people to a rally Saturday night in downtown Phoenix — the largest crowd to date for a presidential candidate whose audiences have been swelling in recent months.