They showed up in the thousands taking their message straight to the White House.

Pro-Palestinian supporters making their voices heard in a large protest in DC expressing outrage at Israel's military operation in Gaza.

Civil Rights Activist Cornel West among the speakers taking aim at President Obama.

SOUNDBITE: CORNEL WEST, CIVIL RIGHTS ACTIVIST, SAYING:

"His drones have killed 233 innocent children and because he facilitates the killing of innocent Palestinians in Gaza."

Demonstrators call for an immediate end of U.S. financial support to Israel.

SOUNDBITE: MIKE JAMIL, PRO-PALESTINIAN SUPPORTER, SAYING:

"Disappointed with what the U.S. is doing for Israel to resupply them with the weapons, to resupply them with things, this is not a fair war."

This protester carrying a mock coffin to commemorate the hundreds of Palestinian children killed in the ongoing conflict.