Former President Barack Obama is described as a “parasite” on the Democratic Party in a new tell-all book about the 2020 election — saying the former president used the party as a “host” for his re-election campaign. Writing in “Battle for the Soul: Inside the Democrats’ Campaign to Defeat Trump,” author Edward-Isaac Dovere said aides to the former president believe he abandoned Democrats after winning the White House in 2008, according to an excerpt obtained by Fox News.