Ronald C. White Jr. is author of new Lincoln biography , `` A. Lincoln '' Lincoln `` embodies the best of America , '' White says . Historian sees some comparisons with President Obama : demeanor , writing ability . By DAVID BARSTOW, Associated Press Writer WASHINGTON  still pertinent , White says .
Ronald C. White Jr. is author of new Lincoln biography , `` A. Lincoln '' Lincoln `` embodies the best of America , '' White says . Historian sees some comparisons with President Obama : demeanor , writing ability . Lincoln 's character , moral vision still pertinent , White says .