The South Carolina senator announced he was suspending his campaign after failing to gain even one percent of the Republican primary vote in national polls.
At a press conference Monday, Haley led bipartisan push to take down the rebel flag that flies in front of the South Carolina state Capitol.
The legislation would also make rape and incest survivors wait 48 hours before being allowed to obtain the procedure.
A biannual report has found that nine former detainees, all of whom were released during the Bush administration, have 're-engaged' since July.
Senators squared off with Obama administration officials today during a Senate Armed Services Committee hearing on the future of the detention facility.