The former Green Party presidential nominee was among 20 people arrested for attempting to deliver three tons of aid to the Palestinians in the Gaza Strip. McKinney was said to be detained this long because she refused to sign papers that would have admitted to break the blockade and would have faced deportation.
McKinney also criticized the Obama administration for failing to call for her release.
"State Department and White House officials have not effected
our release or taken a strong public stance to condemn the illegal actions of the Israeli Navy of enforcing a blockade of humanitarian assistance to the Palestinians of Gaza, a blockade that has been condemned by President Obama."
Congresswoman McKinney is said to arrive in Washington sometime this afternoon from Israel where she will answer questions about the incident.