Rosie O’Donnell in Talks to Join MSNBC By JACQUES STEINBERG and BILL CARTER Rosie O’Donnell, who abruptly left “The View” on ABC last spring after drawing attention and ratings for her opinions on everything from the Iraq war to her co-hosts, is in serious discussions to return to television atop a new soapbox: a prime-time show on the cable news channel MSNBC, according to executives on both sides of the negotiations who have been briefed directly. Under one scenario, Ms. O’Donnell would be given the 9 p.m. slot each weeknight on MSNBC, where she would go head-to-head with two heavyweights...