Reblogged By: De De Tillman;  International Celebrity Blogger Source:celebrity yahoo.com Posted: Monday August 18, 2014 @ 6:00 p.m PST   Elizabeth Vargas has suffered a setback in her struggle with sobriety. The 51-year-old newswoman left a vacation in California over the weekend to return to rehab to treat her alcoholism. CLICK TO READ THE FULL…