Article Photos: Obama's campaign ends where it all began 4/6

  FILE - In this Jan. 3, 2008 file photo, then-Democratic presidential hopeful Sen. Barack Obama, D-Ill. talks with a supporter as he works the rope line at an after caucus rally at the Hy-Vee Center in Des Moines, Iowa, after winning the Iowa Democratic Presidential Caucus. For President Barack Obama, itâs ending where it all began. Obama will close his 2012 campaign with a nighttime rally in Iowa, where his 2008 caucus victory jumpstarted his road to the White House. The president is expected to reflect back on the stateâs pivotal role in his political rise during remarks delivered at the site of his first Iowa campaign headquarters. (AP Photo/M. Spencer Green, File)