Republicans on a private Republican National Committee conference call with allies warned Tuesday that party surrogates should refrain from personal attacks against President Barack Obama, because such a strategy is too hazardous for the GOP. "We're hesitant to jump on board with heavy attacks" personally against President Obama, Nicholas Thompson, the vice president of Tarrance Group, a Republican polling firm, said on the call. "There's a lot of people who feel sorry for him." (snip) On the call--which Yahoo News was invited to attend because of a mistake by someone on the staff of the Republican National Committee--Ari Fleischer, the...